Home / 87,091.40-129,914.12-84,176.04

Finding the Fourth Proportional to 87,091.40, 129,914.12 and 84,176.04

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Solution

The fourth proportional to 87,091.40, 129,914.12 and 84,176.04 is: 125,565.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,091.40 : 129,914.12 = 84,176.04 : x
  2. Step 2: Convert to fraction form
    87,091.40/129,914.12 = 84,176.04/x
  3. Step 3: Cross multiply
    87,091.40x = 129,914.12 × 84,176.04
  4. Step 4: Simplify right side
    87,091.40x = 10,935,656,161.68
  5. Step 5: Solve for x
    x = 10,935,656,161.68/87,091.40
  6. Step 6: Final answer
    x = 125,565.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.