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Finding the Fourth Proportional to 181,645.38, 250,670.62 and 101,078.09

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Solution

The fourth proportional to 181,645.38, 250,670.62 and 101,078.09 is: 139,487.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,645.38 : 250,670.62 = 101,078.09 : x
  2. Step 2: Convert to fraction form
    181,645.38/250,670.62 = 101,078.09/x
  3. Step 3: Cross multiply
    181,645.38x = 250,670.62 × 101,078.09
  4. Step 4: Simplify right side
    181,645.38x = 25,337,305,729.97
  5. Step 5: Solve for x
    x = 25,337,305,729.97/181,645.38
  6. Step 6: Final answer
    x = 139,487.76

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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.