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Finding the Fourth Proportional to 171.79, 236.87 and 116.56

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Solution

The fourth proportional to 171.79, 236.87 and 116.56 is: 160.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.79 : 236.87 = 116.56 : x
  2. Step 2: Convert to fraction form
    171.79/236.87 = 116.56/x
  3. Step 3: Cross multiply
    171.79x = 236.87 × 116.56
  4. Step 4: Simplify right side
    171.79x = 27,609.04
  5. Step 5: Solve for x
    x = 27,609.04/171.79
  6. Step 6: Final answer
    x = 160.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.