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Finding the Third Proportional to 101 and 109.25

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Solution

The third proportional to 101 and 109.25 is: 118.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    101 : 109.25 = 109.25 : x
  2. Step 2: Convert to fraction form
    101/109.25 = 109.25/x
  3. Step 3: Cross multiply
    101x = 109.25 × 109.25
  4. Step 4: Simplify right side
    101x = 11,935.56
  5. Step 5: Solve for x
    x = 11,935.56/101
  6. Step 6: Final answer
    x = 118.17

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.