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Finding the Fourth Proportional to 103.41, 154.20 and 95.52

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Solution

The fourth proportional to 103.41, 154.20 and 95.52 is: 142.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103.41 : 154.20 = 95.52 : x
  2. Step 2: Convert to fraction form
    103.41/154.20 = 95.52/x
  3. Step 3: Cross multiply
    103.41x = 154.20 × 95.52
  4. Step 4: Simplify right side
    103.41x = 14,729.18
  5. Step 5: Solve for x
    x = 14,729.18/103.41
  6. Step 6: Final answer
    x = 142.43

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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.