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Finding the Fourth Proportional to 96.73, 133.40 and 84.44

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Solution

The fourth proportional to 96.73, 133.40 and 84.44 is: 116.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.73 : 133.40 = 84.44 : x
  2. Step 2: Convert to fraction form
    96.73/133.40 = 84.44/x
  3. Step 3: Cross multiply
    96.73x = 133.40 × 84.44
  4. Step 4: Simplify right side
    96.73x = 11,264.84
  5. Step 5: Solve for x
    x = 11,264.84/96.73
  6. Step 6: Final answer
    x = 116.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.