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Finding the Third Proportional to 72,402.75 and 159,540.75

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Solution

The third proportional to 72,402.75 and 159,540.75 is: 351,550.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,402.75 : 159,540.75 = 159,540.75 : x
  2. Step 2: Convert to fraction form
    72,402.75/159,540.75 = 159,540.75/x
  3. Step 3: Cross multiply
    72,402.75x = 159,540.75 × 159,540.75
  4. Step 4: Simplify right side
    72,402.75x = 25,453,250,910.56
  5. Step 5: Solve for x
    x = 25,453,250,910.56/72,402.75
  6. Step 6: Final answer
    x = 351,550.89

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.