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Finding the Third Proportional to 125 and 160.75

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Solution

The third proportional to 125 and 160.75 is: 206.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125 : 160.75 = 160.75 : x
  2. Step 2: Convert to fraction form
    125/160.75 = 160.75/x
  3. Step 3: Cross multiply
    125x = 160.75 × 160.75
  4. Step 4: Simplify right side
    125x = 25,840.56
  5. Step 5: Solve for x
    x = 25,840.56/125
  6. Step 6: Final answer
    x = 206.72

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.