Home / 87,689-191,785

Finding the Third Proportional to 87,689 and 191,785

Calculator

Solution

The third proportional to 87,689 and 191,785 is: 419,453.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,689 : 191,785 = 191,785 : x
  2. Step 2: Convert to fraction form
    87,689/191,785 = 191,785/x
  3. Step 3: Cross multiply
    87,689x = 191,785 × 191,785
  4. Step 4: Simplify right side
    87,689x = 36,781,486,225
  5. Step 5: Solve for x
    x = 36,781,486,225/87,689
  6. Step 6: Final answer
    x = 419,453.82

Related Problems

Find third proportional to 43,844.50 and 95,892.50
Half scale
Find third proportional to 175,378 and 383,570
Double scale
Find third proportional to 87,691 and 191,789
Similar ratio
Find third proportional to 131,533.50 and 287,677.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.