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Finding the Fourth Proportional to 160.04, 239.82 and 87.92

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Solution

The fourth proportional to 160.04, 239.82 and 87.92 is: 131.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.04 : 239.82 = 87.92 : x
  2. Step 2: Convert to fraction form
    160.04/239.82 = 87.92/x
  3. Step 3: Cross multiply
    160.04x = 239.82 × 87.92
  4. Step 4: Simplify right side
    160.04x = 21,084.97
  5. Step 5: Solve for x
    x = 21,084.97/160.04
  6. Step 6: Final answer
    x = 131.75

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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.