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Finding the Fourth Proportional to 97.26, 134.33 and 91.23

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Solution

The fourth proportional to 97.26, 134.33 and 91.23 is: 126.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    97.26 : 134.33 = 91.23 : x
  2. Step 2: Convert to fraction form
    97.26/134.33 = 91.23/x
  3. Step 3: Cross multiply
    97.26x = 134.33 × 91.23
  4. Step 4: Simplify right side
    97.26x = 12,254.47
  5. Step 5: Solve for x
    x = 12,254.47/97.26
  6. Step 6: Final answer
    x = 126.00

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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.