Troy walks to school and back home for a total of 75 x 2 = <<75*2=150>>150 meters every day.
Emily walks to school and back home for a total of 98 x 2 = <<98*2=196>>196 meters every day.
So Emily walks 196 - 150 = <<196-150=46>>46 meters farther than Troy every day.
In five days, Emily walks 46 x 5 = <<46*5=230>>230 meters farther.
#### 230