How the electric force between two positive change if the distance between the charges is tripled?

If the distance between the charges is tripled, the electric force starts to become weaker. For example, when you hold 2 of the same magnets (2 positive magnets) or even 2 opposite magnets (positive and negative) closer to one another, the electric force gets stronger. For the 2 positive magnets, you would have a stronger push when you try to put them together. When you have 2 opposite magnets, the magnetic force forces them to get closer to one another. When you start to pull them farther apart, the electric force becomes weaker.