A Sense of Proportion: The Sun is roughly 100 times the diameter of Earth. If you built a model solar system with a golf ball (diameter of 1.68 inches) for Earth, how big would the model Sun be?

Diameter of Sun in model = 168 inches = 14 feet = 4.27 m

Explanation:

Diameter of Sun = 100 x Diameter of Earth.

We are creating a model where Earth is same as golf ball,

Diameter of Earth in model = Diameter of golf ball

Diameter of Earth in model = 1.68 inches

Diameter of Sun in model = 100 x Diameter of Earth in model

Diameter of Sun in model = 100 x 1.68

Diameter of Sun in model = 168 inches = 14 feet

Diameter of Sun in model = 168 inches = 14 feet = 4.27 m