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Finding the Third Proportional to 67.13 and 99.52

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Solution

The third proportional to 67.13 and 99.52 is: 147.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.13 : 99.52 = 99.52 : x
  2. Step 2: Convert to fraction form
    67.13/99.52 = 99.52/x
  3. Step 3: Cross multiply
    67.13x = 99.52 × 99.52
  4. Step 4: Simplify right side
    67.13x = 9,903.36
  5. Step 5: Solve for x
    x = 9,903.36/67.13
  6. Step 6: Final answer
    x = 147.54

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.