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Finding the Third Proportional to 80,178 and 124,641

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Solution

The third proportional to 80,178 and 124,641 is: 193,761.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,178 : 124,641 = 124,641 : x
  2. Step 2: Convert to fraction form
    80,178/124,641 = 124,641/x
  3. Step 3: Cross multiply
    80,178x = 124,641 × 124,641
  4. Step 4: Simplify right side
    80,178x = 15,535,378,881
  5. Step 5: Solve for x
    x = 15,535,378,881/80,178
  6. Step 6: Final answer
    x = 193,761.12

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.