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Finding the Third Proportional to 79,380.50 and 109,350.75

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Solution

The third proportional to 79,380.50 and 109,350.75 is: 150,636.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,380.50 : 109,350.75 = 109,350.75 : x
  2. Step 2: Convert to fraction form
    79,380.50/109,350.75 = 109,350.75/x
  3. Step 3: Cross multiply
    79,380.50x = 109,350.75 × 109,350.75
  4. Step 4: Simplify right side
    79,380.50x = 11,957,586,525.56
  5. Step 5: Solve for x
    x = 11,957,586,525.56/79,380.50
  6. Step 6: Final answer
    x = 150,636.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.