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Finding the Third Proportional to 75.75 and 101.25

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Solution

The third proportional to 75.75 and 101.25 is: 135.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    75.75 : 101.25 = 101.25 : x
  2. Step 2: Convert to fraction form
    75.75/101.25 = 101.25/x
  3. Step 3: Cross multiply
    75.75x = 101.25 × 101.25
  4. Step 4: Simplify right side
    75.75x = 10,251.56
  5. Step 5: Solve for x
    x = 10,251.56/75.75
  6. Step 6: Final answer
    x = 135.33

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.