Home / 117,331.92-161,917.07-66,354.66

Finding the Fourth Proportional to 117,331.92, 161,917.07 and 66,354.66

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Solution

The fourth proportional to 117,331.92, 161,917.07 and 66,354.66 is: 91,568.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,331.92 : 161,917.07 = 66,354.66 : x
  2. Step 2: Convert to fraction form
    117,331.92/161,917.07 = 66,354.66/x
  3. Step 3: Cross multiply
    117,331.92x = 161,917.07 × 66,354.66
  4. Step 4: Simplify right side
    117,331.92x = 10,743,951,796.27
  5. Step 5: Solve for x
    x = 10,743,951,796.27/117,331.92
  6. Step 6: Final answer
    x = 91,568.87

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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.