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Finding the Fourth Proportional to 132.08, 197.16 and 115.88

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Solution

The fourth proportional to 132.08, 197.16 and 115.88 is: 172.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.08 : 197.16 = 115.88 : x
  2. Step 2: Convert to fraction form
    132.08/197.16 = 115.88/x
  3. Step 3: Cross multiply
    132.08x = 197.16 × 115.88
  4. Step 4: Simplify right side
    132.08x = 22,845.48
  5. Step 5: Solve for x
    x = 22,845.48/132.08
  6. Step 6: Final answer
    x = 172.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.