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Finding the Fourth Proportional to 125,255.70, 172,874.79 and 95,140.71

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Solution

The fourth proportional to 125,255.70, 172,874.79 and 95,140.71 is: 131,310.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,255.70 : 172,874.79 = 95,140.71 : x
  2. Step 2: Convert to fraction form
    125,255.70/172,874.79 = 95,140.71/x
  3. Step 3: Cross multiply
    125,255.70x = 172,874.79 × 95,140.71
  4. Step 4: Simplify right side
    125,255.70x = 16,447,430,261.70
  5. Step 5: Solve for x
    x = 16,447,430,261.70/125,255.70
  6. Step 6: Final answer
    x = 131,310.83

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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.