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Finding the Fourth Proportional to 103.96, 144.04 and 96.94

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Solution

The fourth proportional to 103.96, 144.04 and 96.94 is: 134.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103.96 : 144.04 = 96.94 : x
  2. Step 2: Convert to fraction form
    103.96/144.04 = 96.94/x
  3. Step 3: Cross multiply
    103.96x = 144.04 × 96.94
  4. Step 4: Simplify right side
    103.96x = 13,963.24
  5. Step 5: Solve for x
    x = 13,963.24/103.96
  6. Step 6: Final answer
    x = 134.31

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.