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Finding the Fourth Proportional to 126.60, 175.90 and 125.34

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Solution

The fourth proportional to 126.60, 175.90 and 125.34 is: 174.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126.60 : 175.90 = 125.34 : x
  2. Step 2: Convert to fraction form
    126.60/175.90 = 125.34/x
  3. Step 3: Cross multiply
    126.60x = 175.90 × 125.34
  4. Step 4: Simplify right side
    126.60x = 22,047.31
  5. Step 5: Solve for x
    x = 22,047.31/126.60
  6. Step 6: Final answer
    x = 174.15

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.