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Finding the Fourth Proportional to 96.28, 132.02 and 87.04

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Solution

The fourth proportional to 96.28, 132.02 and 87.04 is: 119.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.28 : 132.02 = 87.04 : x
  2. Step 2: Convert to fraction form
    96.28/132.02 = 87.04/x
  3. Step 3: Cross multiply
    96.28x = 132.02 × 87.04
  4. Step 4: Simplify right side
    96.28x = 11,491.02
  5. Step 5: Solve for x
    x = 11,491.02/96.28
  6. Step 6: Final answer
    x = 119.35

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.