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Finding the Third Proportional to 64,702 and 137,179

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Solution

The third proportional to 64,702 and 137,179 is: 290,842.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,702 : 137,179 = 137,179 : x
  2. Step 2: Convert to fraction form
    64,702/137,179 = 137,179/x
  3. Step 3: Cross multiply
    64,702x = 137,179 × 137,179
  4. Step 4: Simplify right side
    64,702x = 18,818,078,041
  5. Step 5: Solve for x
    x = 18,818,078,041/64,702
  6. Step 6: Final answer
    x = 290,842.29

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.