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Finding the Fourth Proportional to 126.09, 175.22 and 124.83

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Solution

The fourth proportional to 126.09, 175.22 and 124.83 is: 173.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126.09 : 175.22 = 124.83 : x
  2. Step 2: Convert to fraction form
    126.09/175.22 = 124.83/x
  3. Step 3: Cross multiply
    126.09x = 175.22 × 124.83
  4. Step 4: Simplify right side
    126.09x = 21,872.09
  5. Step 5: Solve for x
    x = 21,872.09/126.09
  6. Step 6: Final answer
    x = 173.46

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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.