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Finding the Fourth Proportional to 134.92, 203.47 and 125.92

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Solution

The fourth proportional to 134.92, 203.47 and 125.92 is: 189.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.92 : 203.47 = 125.92 : x
  2. Step 2: Convert to fraction form
    134.92/203.47 = 125.92/x
  3. Step 3: Cross multiply
    134.92x = 203.47 × 125.92
  4. Step 4: Simplify right side
    134.92x = 25,620.94
  5. Step 5: Solve for x
    x = 25,620.94/134.92
  6. Step 6: Final answer
    x = 189.90

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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.