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Finding the Third Proportional to 81,863.25 and 122,289.75

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Solution

The third proportional to 81,863.25 and 122,289.75 is: 182,680.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,863.25 : 122,289.75 = 122,289.75 : x
  2. Step 2: Convert to fraction form
    81,863.25/122,289.75 = 122,289.75/x
  3. Step 3: Cross multiply
    81,863.25x = 122,289.75 × 122,289.75
  4. Step 4: Simplify right side
    81,863.25x = 14,954,782,955.06
  5. Step 5: Solve for x
    x = 14,954,782,955.06/81,863.25
  6. Step 6: Final answer
    x = 182,680.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.