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Finding the Fourth Proportional to 159.85, 239.24 and 95.77

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Solution

The fourth proportional to 159.85, 239.24 and 95.77 is: 143.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.85 : 239.24 = 95.77 : x
  2. Step 2: Convert to fraction form
    159.85/239.24 = 95.77/x
  3. Step 3: Cross multiply
    159.85x = 239.24 × 95.77
  4. Step 4: Simplify right side
    159.85x = 22,911.54
  5. Step 5: Solve for x
    x = 22,911.54/159.85
  6. Step 6: Final answer
    x = 143.33

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Why These Related Problems?

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