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Finding the Fourth Proportional to 159.69, 239.61 and 101.85

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Solution

The fourth proportional to 159.69, 239.61 and 101.85 is: 152.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.69 : 239.61 = 101.85 : x
  2. Step 2: Convert to fraction form
    159.69/239.61 = 101.85/x
  3. Step 3: Cross multiply
    159.69x = 239.61 × 101.85
  4. Step 4: Simplify right side
    159.69x = 24,404.28
  5. Step 5: Solve for x
    x = 24,404.28/159.69
  6. Step 6: Final answer
    x = 152.82

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.