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Finding the Fourth Proportional to 80.10, 119.98 and 60.73

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Solution

The fourth proportional to 80.10, 119.98 and 60.73 is: 90.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80.10 : 119.98 = 60.73 : x
  2. Step 2: Convert to fraction form
    80.10/119.98 = 60.73/x
  3. Step 3: Cross multiply
    80.10x = 119.98 × 60.73
  4. Step 4: Simplify right side
    80.10x = 7,286.39
  5. Step 5: Solve for x
    x = 7,286.39/80.10
  6. Step 6: Final answer
    x = 90.97

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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.