Home / 80,158.72-120,213.76-27,537.92

Finding the Fourth Proportional to 80,158.72, 120,213.76 and 27,537.92

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Solution

The fourth proportional to 80,158.72, 120,213.76 and 27,537.92 is: 41,298.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,158.72 : 120,213.76 = 27,537.92 : x
  2. Step 2: Convert to fraction form
    80,158.72/120,213.76 = 27,537.92/x
  3. Step 3: Cross multiply
    80,158.72x = 120,213.76 × 27,537.92
  4. Step 4: Simplify right side
    80,158.72x = 3,310,436,905.78
  5. Step 5: Solve for x
    x = 3,310,436,905.78/80,158.72
  6. Step 6: Final answer
    x = 41,298.53

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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.