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Finding the Fourth Proportional to 118.60, 176.85 and 101.18

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Solution

The fourth proportional to 118.60, 176.85 and 101.18 is: 150.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118.60 : 176.85 = 101.18 : x
  2. Step 2: Convert to fraction form
    118.60/176.85 = 101.18/x
  3. Step 3: Cross multiply
    118.60x = 176.85 × 101.18
  4. Step 4: Simplify right side
    118.60x = 17,894.13
  5. Step 5: Solve for x
    x = 17,894.13/118.60
  6. Step 6: Final answer
    x = 150.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.