Home / 66,870-99,981

Finding the Third Proportional to 66,870 and 99,981

Calculator

Solution

The third proportional to 66,870 and 99,981 is: 149,487.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,870 : 99,981 = 99,981 : x
  2. Step 2: Convert to fraction form
    66,870/99,981 = 99,981/x
  3. Step 3: Cross multiply
    66,870x = 99,981 × 99,981
  4. Step 4: Simplify right side
    66,870x = 9,996,200,361
  5. Step 5: Solve for x
    x = 9,996,200,361/66,870
  6. Step 6: Final answer
    x = 149,487.07

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.