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Finding the Fourth Proportional to 132.83, 182.88 and 124.28

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Solution

The fourth proportional to 132.83, 182.88 and 124.28 is: 171.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.83 : 182.88 = 124.28 : x
  2. Step 2: Convert to fraction form
    132.83/182.88 = 124.28/x
  3. Step 3: Cross multiply
    132.83x = 182.88 × 124.28
  4. Step 4: Simplify right side
    132.83x = 22,727.41
  5. Step 5: Solve for x
    x = 22,727.41/132.83
  6. Step 6: Final answer
    x = 171.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.