Home / 87,711-189,432

Finding the Third Proportional to 87,711 and 189,432

Calculator

Solution

The third proportional to 87,711 and 189,432 is: 409,121.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,711 : 189,432 = 189,432 : x
  2. Step 2: Convert to fraction form
    87,711/189,432 = 189,432/x
  3. Step 3: Cross multiply
    87,711x = 189,432 × 189,432
  4. Step 4: Simplify right side
    87,711x = 35,884,482,624
  5. Step 5: Solve for x
    x = 35,884,482,624/87,711
  6. Step 6: Final answer
    x = 409,121.80

Related Problems

Find third proportional to 43,855.50 and 94,716
Half scale
Find third proportional to 175,422 and 378,864
Double scale
Find third proportional to 87,713 and 189,436
Similar ratio
Find third proportional to 131,566.50 and 284,148
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.