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Finding the Third Proportional to 103,675 and 140,678

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Solution

The third proportional to 103,675 and 140,678 is: 190,887.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,675 : 140,678 = 140,678 : x
  2. Step 2: Convert to fraction form
    103,675/140,678 = 140,678/x
  3. Step 3: Cross multiply
    103,675x = 140,678 × 140,678
  4. Step 4: Simplify right side
    103,675x = 19,790,299,684
  5. Step 5: Solve for x
    x = 19,790,299,684/103,675
  6. Step 6: Final answer
    x = 190,887.87

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.