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Finding the Fourth Proportional to 108.06, 148.97 and 93.26

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Solution

The fourth proportional to 108.06, 148.97 and 93.26 is: 128.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    108.06 : 148.97 = 93.26 : x
  2. Step 2: Convert to fraction form
    108.06/148.97 = 93.26/x
  3. Step 3: Cross multiply
    108.06x = 148.97 × 93.26
  4. Step 4: Simplify right side
    108.06x = 13,891.73
  5. Step 5: Solve for x
    x = 13,891.73/108.06
  6. Step 6: Final answer
    x = 128.56

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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.