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Finding the Fourth Proportional to 131,469.78, 181,046.79 and 114,234.39

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Solution

The fourth proportional to 131,469.78, 181,046.79 and 114,234.39 is: 157,311.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,469.78 : 181,046.79 = 114,234.39 : x
  2. Step 2: Convert to fraction form
    131,469.78/181,046.79 = 114,234.39/x
  3. Step 3: Cross multiply
    131,469.78x = 181,046.79 × 114,234.39
  4. Step 4: Simplify right side
    131,469.78x = 20,681,769,617.11
  5. Step 5: Solve for x
    x = 20,681,769,617.11/131,469.78
  6. Step 6: Final answer
    x = 157,311.97

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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.