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Finding the Fourth Proportional to 96.58, 133.17 and 79.03

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Solution

The fourth proportional to 96.58, 133.17 and 79.03 is: 108.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.58 : 133.17 = 79.03 : x
  2. Step 2: Convert to fraction form
    96.58/133.17 = 79.03/x
  3. Step 3: Cross multiply
    96.58x = 133.17 × 79.03
  4. Step 4: Simplify right side
    96.58x = 10,524.43
  5. Step 5: Solve for x
    x = 10,524.43/96.58
  6. Step 6: Final answer
    x = 108.97

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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.