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Finding the Fourth Proportional to 97.30, 144.92 and 92.62

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Solution

The fourth proportional to 97.30, 144.92 and 92.62 is: 137.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    97.30 : 144.92 = 92.62 : x
  2. Step 2: Convert to fraction form
    97.30/144.92 = 92.62/x
  3. Step 3: Cross multiply
    97.30x = 144.92 × 92.62
  4. Step 4: Simplify right side
    97.30x = 13,422.49
  5. Step 5: Solve for x
    x = 13,422.49/97.30
  6. Step 6: Final answer
    x = 137.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.