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Finding the Fourth Proportional to 129,757.01, 179,070.81 and 73,167.17

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Solution

The fourth proportional to 129,757.01, 179,070.81 and 73,167.17 is: 100,974.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,757.01 : 179,070.81 = 73,167.17 : x
  2. Step 2: Convert to fraction form
    129,757.01/179,070.81 = 73,167.17/x
  3. Step 3: Cross multiply
    129,757.01x = 179,070.81 × 73,167.17
  4. Step 4: Simplify right side
    129,757.01x = 13,102,104,397.31
  5. Step 5: Solve for x
    x = 13,102,104,397.31/129,757.01
  6. Step 6: Final answer
    x = 100,974.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.