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Finding the Third Proportional to 70,242.75 and 111,721.75

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Solution

The third proportional to 70,242.75 and 111,721.75 is: 177,694.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,242.75 : 111,721.75 = 111,721.75 : x
  2. Step 2: Convert to fraction form
    70,242.75/111,721.75 = 111,721.75/x
  3. Step 3: Cross multiply
    70,242.75x = 111,721.75 × 111,721.75
  4. Step 4: Simplify right side
    70,242.75x = 12,481,749,423.06
  5. Step 5: Solve for x
    x = 12,481,749,423.06/70,242.75
  6. Step 6: Final answer
    x = 177,694.49

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.