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Finding the Fourth Proportional to 126.01, 173.78 and 82.27

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Solution

The fourth proportional to 126.01, 173.78 and 82.27 is: 113.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126.01 : 173.78 = 82.27 : x
  2. Step 2: Convert to fraction form
    126.01/173.78 = 82.27/x
  3. Step 3: Cross multiply
    126.01x = 173.78 × 82.27
  4. Step 4: Simplify right side
    126.01x = 14,296.47
  5. Step 5: Solve for x
    x = 14,296.47/126.01
  6. Step 6: Final answer
    x = 113.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.