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Finding the Fourth Proportional to 124.12, 185.97 and 119.66

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Solution

The fourth proportional to 124.12, 185.97 and 119.66 is: 179.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.12 : 185.97 = 119.66 : x
  2. Step 2: Convert to fraction form
    124.12/185.97 = 119.66/x
  3. Step 3: Cross multiply
    124.12x = 185.97 × 119.66
  4. Step 4: Simplify right side
    124.12x = 22,253.17
  5. Step 5: Solve for x
    x = 22,253.17/124.12
  6. Step 6: Final answer
    x = 179.29

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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.