Solve i dont know how?

While traveling in a car, the centrifugal force a penger experiences as the car drives in a circle varies jointly as the m of the penger and the square of the speed of the car. If the a penger experiences a force of 162 newtons when the car is moving at a speed of 60 kilometers per hour and the penger has a m of 50 kilograms, find the force a passenger experiences when the car is moving at 40 kilometers per hour and the passenger has a mass of 100 kilograms.