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Finding the Fourth Proportional to 159.67, 220.29 and 94.17

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Solution

The fourth proportional to 159.67, 220.29 and 94.17 is: 129.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.67 : 220.29 = 94.17 : x
  2. Step 2: Convert to fraction form
    159.67/220.29 = 94.17/x
  3. Step 3: Cross multiply
    159.67x = 220.29 × 94.17
  4. Step 4: Simplify right side
    159.67x = 20,744.71
  5. Step 5: Solve for x
    x = 20,744.71/159.67
  6. Step 6: Final answer
    x = 129.92

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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.