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Finding the Third Proportional to 99,810 and 146,787.75

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Solution

The third proportional to 99,810 and 146,787.75 is: 215,876.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,810 : 146,787.75 = 146,787.75 : x
  2. Step 2: Convert to fraction form
    99,810/146,787.75 = 146,787.75/x
  3. Step 3: Cross multiply
    99,810x = 146,787.75 × 146,787.75
  4. Step 4: Simplify right side
    99,810x = 21,546,643,550.06
  5. Step 5: Solve for x
    x = 21,546,643,550.06/99,810
  6. Step 6: Final answer
    x = 215,876.60

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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.