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Finding the Third Proportional to 67,758 and 102,137

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Solution

The third proportional to 67,758 and 102,137 is: 153,959.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,758 : 102,137 = 102,137 : x
  2. Step 2: Convert to fraction form
    67,758/102,137 = 102,137/x
  3. Step 3: Cross multiply
    67,758x = 102,137 × 102,137
  4. Step 4: Simplify right side
    67,758x = 10,431,966,769
  5. Step 5: Solve for x
    x = 10,431,966,769/67,758
  6. Step 6: Final answer
    x = 153,959.19

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.