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Finding the Third Proportional to 77,841 and 120,757.50

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Solution

The third proportional to 77,841 and 120,757.50 is: 187,335.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,841 : 120,757.50 = 120,757.50 : x
  2. Step 2: Convert to fraction form
    77,841/120,757.50 = 120,757.50/x
  3. Step 3: Cross multiply
    77,841x = 120,757.50 × 120,757.50
  4. Step 4: Simplify right side
    77,841x = 14,582,373,806.25
  5. Step 5: Solve for x
    x = 14,582,373,806.25/77,841
  6. Step 6: Final answer
    x = 187,335.39

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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.