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Finding the Fourth Proportional to 171.59, 236.80 and 93.97

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Solution

The fourth proportional to 171.59, 236.80 and 93.97 is: 129.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.59 : 236.80 = 93.97 : x
  2. Step 2: Convert to fraction form
    171.59/236.80 = 93.97/x
  3. Step 3: Cross multiply
    171.59x = 236.80 × 93.97
  4. Step 4: Simplify right side
    171.59x = 22,252.10
  5. Step 5: Solve for x
    x = 22,252.10/171.59
  6. Step 6: Final answer
    x = 129.68

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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.