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Finding the Fourth Proportional to 103.37, 154.33 and 93.13

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Solution

The fourth proportional to 103.37, 154.33 and 93.13 is: 139.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103.37 : 154.33 = 93.13 : x
  2. Step 2: Convert to fraction form
    103.37/154.33 = 93.13/x
  3. Step 3: Cross multiply
    103.37x = 154.33 × 93.13
  4. Step 4: Simplify right side
    103.37x = 14,372.75
  5. Step 5: Solve for x
    x = 14,372.75/103.37
  6. Step 6: Final answer
    x = 139.04

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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.