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Finding the Third Proportional to 68,721.75 and 100,622.25

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Solution

The third proportional to 68,721.75 and 100,622.25 is: 147,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,721.75 : 100,622.25 = 100,622.25 : x
  2. Step 2: Convert to fraction form
    68,721.75/100,622.25 = 100,622.25/x
  3. Step 3: Cross multiply
    68,721.75x = 100,622.25 × 100,622.25
  4. Step 4: Simplify right side
    68,721.75x = 10,124,837,195.06
  5. Step 5: Solve for x
    x = 10,124,837,195.06/68,721.75
  6. Step 6: Final answer
    x = 147,330.90

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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.