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Finding the Fourth Proportional to 100.04, 136.96 and 96.39

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Solution

The fourth proportional to 100.04, 136.96 and 96.39 is: 131.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100.04 : 136.96 = 96.39 : x
  2. Step 2: Convert to fraction form
    100.04/136.96 = 96.39/x
  3. Step 3: Cross multiply
    100.04x = 136.96 × 96.39
  4. Step 4: Simplify right side
    100.04x = 13,201.33
  5. Step 5: Solve for x
    x = 13,201.33/100.04
  6. Step 6: Final answer
    x = 131.97

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.