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Finding the Third Proportional to 71,211 and 110,705.25

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Solution

The third proportional to 71,211 and 110,705.25 is: 172,103.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,211 : 110,705.25 = 110,705.25 : x
  2. Step 2: Convert to fraction form
    71,211/110,705.25 = 110,705.25/x
  3. Step 3: Cross multiply
    71,211x = 110,705.25 × 110,705.25
  4. Step 4: Simplify right side
    71,211x = 12,255,652,377.56
  5. Step 5: Solve for x
    x = 12,255,652,377.56/71,211
  6. Step 6: Final answer
    x = 172,103.36

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.