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Finding the Fourth Proportional to 132.09, 183.13 and 124.80

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Solution

The fourth proportional to 132.09, 183.13 and 124.80 is: 173.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.09 : 183.13 = 124.80 : x
  2. Step 2: Convert to fraction form
    132.09/183.13 = 124.80/x
  3. Step 3: Cross multiply
    132.09x = 183.13 × 124.80
  4. Step 4: Simplify right side
    132.09x = 22,854.62
  5. Step 5: Solve for x
    x = 22,854.62/132.09
  6. Step 6: Final answer
    x = 173.02

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.