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Finding the Third Proportional to 68,622.75 and 99,105.75

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Solution

The third proportional to 68,622.75 and 99,105.75 is: 143,129.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,622.75 : 99,105.75 = 99,105.75 : x
  2. Step 2: Convert to fraction form
    68,622.75/99,105.75 = 99,105.75/x
  3. Step 3: Cross multiply
    68,622.75x = 99,105.75 × 99,105.75
  4. Step 4: Simplify right side
    68,622.75x = 9,821,949,683.06
  5. Step 5: Solve for x
    x = 9,821,949,683.06/68,622.75
  6. Step 6: Final answer
    x = 143,129.64

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.