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Finding the Third Proportional to 68,694.75 and 144,769.50

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Solution

The third proportional to 68,694.75 and 144,769.50 is: 305,091.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,694.75 : 144,769.50 = 144,769.50 : x
  2. Step 2: Convert to fraction form
    68,694.75/144,769.50 = 144,769.50/x
  3. Step 3: Cross multiply
    68,694.75x = 144,769.50 × 144,769.50
  4. Step 4: Simplify right side
    68,694.75x = 20,958,208,130.25
  5. Step 5: Solve for x
    x = 20,958,208,130.25/68,694.75
  6. Step 6: Final answer
    x = 305,091.85

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.