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Finding the Fourth Proportional to 96.08, 132.52 and 76.72

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Solution

The fourth proportional to 96.08, 132.52 and 76.72 is: 105.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.08 : 132.52 = 76.72 : x
  2. Step 2: Convert to fraction form
    96.08/132.52 = 76.72/x
  3. Step 3: Cross multiply
    96.08x = 132.52 × 76.72
  4. Step 4: Simplify right side
    96.08x = 10,166.93
  5. Step 5: Solve for x
    x = 10,166.93/96.08
  6. Step 6: Final answer
    x = 105.82

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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.