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Finding the Fourth Proportional to 159.91, 239.69 and 63.63

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Solution

The fourth proportional to 159.91, 239.69 and 63.63 is: 95.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.91 : 239.69 = 63.63 : x
  2. Step 2: Convert to fraction form
    159.91/239.69 = 63.63/x
  3. Step 3: Cross multiply
    159.91x = 239.69 × 63.63
  4. Step 4: Simplify right side
    159.91x = 15,251.16
  5. Step 5: Solve for x
    x = 15,251.16/159.91
  6. Step 6: Final answer
    x = 95.37

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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.