Home / 108,132.43-162,198.57-78,737.26

Finding the Fourth Proportional to 108,132.43, 162,198.57 and 78,737.26

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Solution

The fourth proportional to 108,132.43, 162,198.57 and 78,737.26 is: 118,105.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,132.43 : 162,198.57 = 78,737.26 : x
  2. Step 2: Convert to fraction form
    108,132.43/162,198.57 = 78,737.26/x
  3. Step 3: Cross multiply
    108,132.43x = 162,198.57 × 78,737.26
  4. Step 4: Simplify right side
    108,132.43x = 12,771,070,166.73
  5. Step 5: Solve for x
    x = 12,771,070,166.73/108,132.43
  6. Step 6: Final answer
    x = 118,105.83

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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.