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Finding the Fourth Proportional to 96.44, 143.80 and 92.18

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Solution

The fourth proportional to 96.44, 143.80 and 92.18 is: 137.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.44 : 143.80 = 92.18 : x
  2. Step 2: Convert to fraction form
    96.44/143.80 = 92.18/x
  3. Step 3: Cross multiply
    96.44x = 143.80 × 92.18
  4. Step 4: Simplify right side
    96.44x = 13,255.61
  5. Step 5: Solve for x
    x = 13,255.61/96.44
  6. Step 6: Final answer
    x = 137.46

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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.