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Finding the Fourth Proportional to 84.49, 116.52 and 73.55

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Solution

The fourth proportional to 84.49, 116.52 and 73.55 is: 101.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84.49 : 116.52 = 73.55 : x
  2. Step 2: Convert to fraction form
    84.49/116.52 = 73.55/x
  3. Step 3: Cross multiply
    84.49x = 116.52 × 73.55
  4. Step 4: Simplify right side
    84.49x = 8,570.05
  5. Step 5: Solve for x
    x = 8,570.05/84.49
  6. Step 6: Final answer
    x = 101.44

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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.