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Finding the Fourth Proportional to 92.01, 127.22 and 91.29

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Solution

The fourth proportional to 92.01, 127.22 and 91.29 is: 126.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    92.01 : 127.22 = 91.29 : x
  2. Step 2: Convert to fraction form
    92.01/127.22 = 91.29/x
  3. Step 3: Cross multiply
    92.01x = 127.22 × 91.29
  4. Step 4: Simplify right side
    92.01x = 11,613.46
  5. Step 5: Solve for x
    x = 11,613.46/92.01
  6. Step 6: Final answer
    x = 126.22

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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.