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Finding the Fourth Proportional to 126.27, 173.79 and 110.77

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Solution

The fourth proportional to 126.27, 173.79 and 110.77 is: 152.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126.27 : 173.79 = 110.77 : x
  2. Step 2: Convert to fraction form
    126.27/173.79 = 110.77/x
  3. Step 3: Cross multiply
    126.27x = 173.79 × 110.77
  4. Step 4: Simplify right side
    126.27x = 19,250.28
  5. Step 5: Solve for x
    x = 19,250.28/126.27
  6. Step 6: Final answer
    x = 152.45

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Find fourth proportional to 63.14, 86.90 and 55.38
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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.