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Finding the Fourth Proportional to 132.18, 197.79 and 93.54

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Solution

The fourth proportional to 132.18, 197.79 and 93.54 is: 139.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    132.18 : 197.79 = 93.54 : x
  2. Step 2: Convert to fraction form
    132.18/197.79 = 93.54/x
  3. Step 3: Cross multiply
    132.18x = 197.79 × 93.54
  4. Step 4: Simplify right side
    132.18x = 18,501.28
  5. Step 5: Solve for x
    x = 18,501.28/132.18
  6. Step 6: Final answer
    x = 139.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.