Home / 80,143.18-120,170.33-32,791.49

Finding the Fourth Proportional to 80,143.18, 120,170.33 and 32,791.49

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Solution

The fourth proportional to 80,143.18, 120,170.33 and 32,791.49 is: 49,169.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,143.18 : 120,170.33 = 32,791.49 : x
  2. Step 2: Convert to fraction form
    80,143.18/120,170.33 = 32,791.49/x
  3. Step 3: Cross multiply
    80,143.18x = 120,170.33 × 32,791.49
  4. Step 4: Simplify right side
    80,143.18x = 3,940,564,505.72
  5. Step 5: Solve for x
    x = 3,940,564,505.72/80,143.18
  6. Step 6: Final answer
    x = 49,169.06

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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.