Pennsylvania is about 1.4 times bigger than United Arab Emirates.

United Arab Emirates is approximately 83,600 sq km, while Pennsylvania is approximately 116,075 sq km, making Pennsylvania 39% larger than United Arab Emirates. Meanwhile, the population of United Arab Emirates is ~9.9 million people (2.8 million more people live in Pennsylvania).
Tip: This to-scale comparison of United Arab Emirates vs. Pennsylvania uses the Mercator projection, which distorts the size of regions near the poles.