Home / 129,318.20-178,432.34-75,592.82

Finding the Fourth Proportional to 129,318.20, 178,432.34 and 75,592.82

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Solution

The fourth proportional to 129,318.20, 178,432.34 and 75,592.82 is: 104,302.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,318.20 : 178,432.34 = 75,592.82 : x
  2. Step 2: Convert to fraction form
    129,318.20/178,432.34 = 75,592.82/x
  3. Step 3: Cross multiply
    129,318.20x = 178,432.34 × 75,592.82
  4. Step 4: Simplify right side
    129,318.20x = 13,488,203,759.80
  5. Step 5: Solve for x
    x = 13,488,203,759.80/129,318.20
  6. Step 6: Final answer
    x = 104,302.44

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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.