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Finding the Third Proportional to 81,230 and 121,846

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Solution

The third proportional to 81,230 and 121,846 is: 182,770.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,230 : 121,846 = 121,846 : x
  2. Step 2: Convert to fraction form
    81,230/121,846 = 121,846/x
  3. Step 3: Cross multiply
    81,230x = 121,846 × 121,846
  4. Step 4: Simplify right side
    81,230x = 14,846,447,716
  5. Step 5: Solve for x
    x = 14,846,447,716/81,230
  6. Step 6: Final answer
    x = 182,770.50

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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.