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Finding the Third Proportional to 84,778.50 and 131,064.75

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Solution

The third proportional to 84,778.50 and 131,064.75 is: 202,621.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,778.50 : 131,064.75 = 131,064.75 : x
  2. Step 2: Convert to fraction form
    84,778.50/131,064.75 = 131,064.75/x
  3. Step 3: Cross multiply
    84,778.50x = 131,064.75 × 131,064.75
  4. Step 4: Simplify right side
    84,778.50x = 17,177,968,692.56
  5. Step 5: Solve for x
    x = 17,177,968,692.56/84,778.50
  6. Step 6: Final answer
    x = 202,621.76

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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.