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Finding the Fourth Proportional to 131,793.29, 181,887.77 and 75,213.17

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Solution

The fourth proportional to 131,793.29, 181,887.77 and 75,213.17 is: 103,801.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,793.29 : 181,887.77 = 75,213.17 : x
  2. Step 2: Convert to fraction form
    131,793.29/181,887.77 = 75,213.17/x
  3. Step 3: Cross multiply
    131,793.29x = 181,887.77 × 75,213.17
  4. Step 4: Simplify right side
    131,793.29x = 13,680,355,765.93
  5. Step 5: Solve for x
    x = 13,680,355,765.93/131,793.29
  6. Step 6: Final answer
    x = 103,801.61

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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.