Home / 108,171.38-162,231.86-29,291.76

Finding the Fourth Proportional to 108,171.38, 162,231.86 and 29,291.76

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Solution

The fourth proportional to 108,171.38, 162,231.86 and 29,291.76 is: 43,930.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,171.38 : 162,231.86 = 29,291.76 : x
  2. Step 2: Convert to fraction form
    108,171.38/162,231.86 = 29,291.76/x
  3. Step 3: Cross multiply
    108,171.38x = 162,231.86 × 29,291.76
  4. Step 4: Simplify right side
    108,171.38x = 4,752,056,780.70
  5. Step 5: Solve for x
    x = 4,752,056,780.70/108,171.38
  6. Step 6: Final answer
    x = 43,930.81

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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.