Home / 108,487.10-162,753.88-55,186.49

Finding the Fourth Proportional to 108,487.10, 162,753.88 and 55,186.49

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Solution

The fourth proportional to 108,487.10, 162,753.88 and 55,186.49 is: 82,791.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,487.10 : 162,753.88 = 55,186.49 : x
  2. Step 2: Convert to fraction form
    108,487.10/162,753.88 = 55,186.49/x
  3. Step 3: Cross multiply
    108,487.10x = 162,753.88 × 55,186.49
  4. Step 4: Simplify right side
    108,487.10x = 8,981,815,440.94
  5. Step 5: Solve for x
    x = 8,981,815,440.94/108,487.10
  6. Step 6: Final answer
    x = 82,791.55

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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.