Bethesda-based Marriott International Inc. is on track to have 4,000 hotels in 90 countries across its portfolio by 2014.

With 115,000 hotel rooms in its development pipeline, Marriott (NYSE: MAR) could open between 90,000 and 105,000 new rooms around the world in 2012 through 2014, not including the planned Gaylord acquisition.

“Beyond our major expansion here, China also represents extraordinary opportunities for the travel sector globally,” said Arne Sornerson, president and CEO. “The country is now the third largest source market for international travel behind the U.S. and Germany, with 70 million travelers annually, fueled by a dramatically growing middle class.

Marriott, with about 120,000 employees worldwide, expects to generate between $1.8 billion and $1.9 billion in worldwide fee revenue through 2014, assuming compound worldwide system-wide revenue per available room growth of 6 percent to 8 percent.