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Finding the Fourth Proportional to 83.47, 114.82 and 80.14

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Solution

The fourth proportional to 83.47, 114.82 and 80.14 is: 110.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83.47 : 114.82 = 80.14 : x
  2. Step 2: Convert to fraction form
    83.47/114.82 = 80.14/x
  3. Step 3: Cross multiply
    83.47x = 114.82 × 80.14
  4. Step 4: Simplify right side
    83.47x = 9,201.67
  5. Step 5: Solve for x
    x = 9,201.67/83.47
  6. Step 6: Final answer
    x = 110.24

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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.