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Finding the Third Proportional to 76,959 and 115,661.25

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Solution

The third proportional to 76,959 and 115,661.25 is: 173,826.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,959 : 115,661.25 = 115,661.25 : x
  2. Step 2: Convert to fraction form
    76,959/115,661.25 = 115,661.25/x
  3. Step 3: Cross multiply
    76,959x = 115,661.25 × 115,661.25
  4. Step 4: Simplify right side
    76,959x = 13,377,524,751.56
  5. Step 5: Solve for x
    x = 13,377,524,751.56/76,959
  6. Step 6: Final answer
    x = 173,826.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.