Home / 87,404.30-131,106.45-77,554.70

Finding the Fourth Proportional to 87,404.30, 131,106.45 and 77,554.70

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Solution

The fourth proportional to 87,404.30, 131,106.45 and 77,554.70 is: 116,332.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,404.30 : 131,106.45 = 77,554.70 : x
  2. Step 2: Convert to fraction form
    87,404.30/131,106.45 = 77,554.70/x
  3. Step 3: Cross multiply
    87,404.30x = 131,106.45 × 77,554.70
  4. Step 4: Simplify right side
    87,404.30x = 10,167,921,397.82
  5. Step 5: Solve for x
    x = 10,167,921,397.82/87,404.30
  6. Step 6: Final answer
    x = 116,332.05

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1.5x scale

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.