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Finding the Fourth Proportional to 96.43, 143.54 and 95.39

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Solution

The fourth proportional to 96.43, 143.54 and 95.39 is: 141.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.43 : 143.54 = 95.39 : x
  2. Step 2: Convert to fraction form
    96.43/143.54 = 95.39/x
  3. Step 3: Cross multiply
    96.43x = 143.54 × 95.39
  4. Step 4: Simplify right side
    96.43x = 13,691.80
  5. Step 5: Solve for x
    x = 13,691.80/96.43
  6. Step 6: Final answer
    x = 141.99

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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.