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Finding the Fourth Proportional to 132.66, 182.96 and 83.52

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Solution

The fourth proportional to 132.66, 182.96 and 83.52 is: 115.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.66 : 182.96 = 83.52 : x
  2. Step 2: Convert to fraction form
    132.66/182.96 = 83.52/x
  3. Step 3: Cross multiply
    132.66x = 182.96 × 83.52
  4. Step 4: Simplify right side
    132.66x = 15,280.82
  5. Step 5: Solve for x
    x = 15,280.82/132.66
  6. Step 6: Final answer
    x = 115.19

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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.