Spokane, Washington is 2.3 times larger than Ann Arbor, Michigan.
Area: 77 km2 calculated
Ann Arbor is a city in the US state of Michigan and the county seat of Washtenaw County. The 2010 census recorded its population to be 113,934, making it the sixth largest city in Michigan. Wikipedia
Area: 179 km2 calculated
Spokane is a city located in the northwestern United States in the state of Washington. It is the largest city of Spokane County of which it is also the county seat, second largest city in the state of Washington, and the metropolitan center of the Inland Northwest region. Wikipedia