Home / 108,217.76-162,159.18-75,002.70

Finding the Fourth Proportional to 108,217.76, 162,159.18 and 75,002.70

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Solution

The fourth proportional to 108,217.76, 162,159.18 and 75,002.70 is: 112,387.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,217.76 : 162,159.18 = 75,002.70 : x
  2. Step 2: Convert to fraction form
    108,217.76/162,159.18 = 75,002.70/x
  3. Step 3: Cross multiply
    108,217.76x = 162,159.18 × 75,002.70
  4. Step 4: Simplify right side
    108,217.76x = 12,162,376,329.79
  5. Step 5: Solve for x
    x = 12,162,376,329.79/108,217.76
  6. Step 6: Final answer
    x = 112,387.99

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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.