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Finding the Third Proportional to 68,821.50 and 100,575.75

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Solution

The third proportional to 68,821.50 and 100,575.75 is: 146,981.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,821.50 : 100,575.75 = 100,575.75 : x
  2. Step 2: Convert to fraction form
    68,821.50/100,575.75 = 100,575.75/x
  3. Step 3: Cross multiply
    68,821.50x = 100,575.75 × 100,575.75
  4. Step 4: Simplify right side
    68,821.50x = 10,115,481,488.06
  5. Step 5: Solve for x
    x = 10,115,481,488.06/68,821.50
  6. Step 6: Final answer
    x = 146,981.42

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.