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Finding the Fourth Proportional to 133.92, 201.96 and 124.92

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Solution

The fourth proportional to 133.92, 201.96 and 124.92 is: 188.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.92 : 201.96 = 124.92 : x
  2. Step 2: Convert to fraction form
    133.92/201.96 = 124.92/x
  3. Step 3: Cross multiply
    133.92x = 201.96 × 124.92
  4. Step 4: Simplify right side
    133.92x = 25,228.84
  5. Step 5: Solve for x
    x = 25,228.84/133.92
  6. Step 6: Final answer
    x = 188.39

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.