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Finding the Third Proportional to 82,762 and 121,279.50

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Solution

The third proportional to 82,762 and 121,279.50 is: 177,723.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,762 : 121,279.50 = 121,279.50 : x
  2. Step 2: Convert to fraction form
    82,762/121,279.50 = 121,279.50/x
  3. Step 3: Cross multiply
    82,762x = 121,279.50 × 121,279.50
  4. Step 4: Simplify right side
    82,762x = 14,708,717,120.25
  5. Step 5: Solve for x
    x = 14,708,717,120.25/82,762
  6. Step 6: Final answer
    x = 177,723.07

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.