Home / 107,917.92-161,857.26-29,013.72

Finding the Fourth Proportional to 107,917.92, 161,857.26 and 29,013.72

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Solution

The fourth proportional to 107,917.92, 161,857.26 and 29,013.72 is: 43,515.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,917.92 : 161,857.26 = 29,013.72 : x
  2. Step 2: Convert to fraction form
    107,917.92/161,857.26 = 29,013.72/x
  3. Step 3: Cross multiply
    107,917.92x = 161,857.26 × 29,013.72
  4. Step 4: Simplify right side
    107,917.92x = 4,696,081,221.61
  5. Step 5: Solve for x
    x = 4,696,081,221.61/107,917.92
  6. Step 6: Final answer
    x = 43,515.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.