Home / 129,373.27-178,469.79-75,623.17

Finding the Fourth Proportional to 129,373.27, 178,469.79 and 75,623.17

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Solution

The fourth proportional to 129,373.27, 178,469.79 and 75,623.17 is: 104,321.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,373.27 : 178,469.79 = 75,623.17 : x
  2. Step 2: Convert to fraction form
    129,373.27/178,469.79 = 75,623.17/x
  3. Step 3: Cross multiply
    129,373.27x = 178,469.79 × 75,623.17
  4. Step 4: Simplify right side
    129,373.27x = 13,496,451,269.03
  5. Step 5: Solve for x
    x = 13,496,451,269.03/129,373.27
  6. Step 6: Final answer
    x = 104,321.79

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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.