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Finding the Third Proportional to 81,228.75 and 168,957.75

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Solution

The third proportional to 81,228.75 and 168,957.75 is: 351,436.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,228.75 : 168,957.75 = 168,957.75 : x
  2. Step 2: Convert to fraction form
    81,228.75/168,957.75 = 168,957.75/x
  3. Step 3: Cross multiply
    81,228.75x = 168,957.75 × 168,957.75
  4. Step 4: Simplify right side
    81,228.75x = 28,546,721,285.06
  5. Step 5: Solve for x
    x = 28,546,721,285.06/81,228.75
  6. Step 6: Final answer
    x = 351,436.18

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.