Gravity near Earth’s surface

An object has weight 120.0 N when measured at rest at the Earth’s pole. When placed at the equator, its apparent weight is reduced because of the required centripetal force for Earth’s rotation. Take Earth’s mass as $5.97\times10^{24}\,\text{kg}$, radius $6.37\times10^{6}\,\text{m}$, and period 24 h. Find the reading on the spring balance at the equator.