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Finding the Fourth Proportional to 134.80, 201.22 and 125.18

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Solution

The fourth proportional to 134.80, 201.22 and 125.18 is: 186.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.80 : 201.22 = 125.18 : x
  2. Step 2: Convert to fraction form
    134.80/201.22 = 125.18/x
  3. Step 3: Cross multiply
    134.80x = 201.22 × 125.18
  4. Step 4: Simplify right side
    134.80x = 25,188.16
  5. Step 5: Solve for x
    x = 25,188.16/134.80
  6. Step 6: Final answer
    x = 186.86

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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.