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Finding the Fourth Proportional to 96.90, 132.90 and 96.54

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Solution

The fourth proportional to 96.90, 132.90 and 96.54 is: 132.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.90 : 132.90 = 96.54 : x
  2. Step 2: Convert to fraction form
    96.90/132.90 = 96.54/x
  3. Step 3: Cross multiply
    96.90x = 132.90 × 96.54
  4. Step 4: Simplify right side
    96.90x = 12,830.17
  5. Step 5: Solve for x
    x = 12,830.17/96.90
  6. Step 6: Final answer
    x = 132.41

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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.