Home / 108,431.18-149,650.80-62,481.92

Finding the Fourth Proportional to 108,431.18, 149,650.80 and 62,481.92

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Solution

The fourth proportional to 108,431.18, 149,650.80 and 62,481.92 is: 86,234.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,431.18 : 149,650.80 = 62,481.92 : x
  2. Step 2: Convert to fraction form
    108,431.18/149,650.80 = 62,481.92/x
  3. Step 3: Cross multiply
    108,431.18x = 149,650.80 × 62,481.92
  4. Step 4: Simplify right side
    108,431.18x = 9,350,469,313.54
  5. Step 5: Solve for x
    x = 9,350,469,313.54/108,431.18
  6. Step 6: Final answer
    x = 86,234.14

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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.