Home / 108,345.20-162,370.17-66,239.98

Finding the Fourth Proportional to 108,345.20, 162,370.17 and 66,239.98

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Solution

The fourth proportional to 108,345.20, 162,370.17 and 66,239.98 is: 99,269.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,345.20 : 162,370.17 = 66,239.98 : x
  2. Step 2: Convert to fraction form
    108,345.20/162,370.17 = 66,239.98/x
  3. Step 3: Cross multiply
    108,345.20x = 162,370.17 × 66,239.98
  4. Step 4: Simplify right side
    108,345.20x = 10,755,396,407.47
  5. Step 5: Solve for x
    x = 10,755,396,407.47/108,345.20
  6. Step 6: Final answer
    x = 99,269.71

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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.