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Finding the Third Proportional to 68,340 and 147,912

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Solution

The third proportional to 68,340 and 147,912 is: 320,134.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,340 : 147,912 = 147,912 : x
  2. Step 2: Convert to fraction form
    68,340/147,912 = 147,912/x
  3. Step 3: Cross multiply
    68,340x = 147,912 × 147,912
  4. Step 4: Simplify right side
    68,340x = 21,877,959,744
  5. Step 5: Solve for x
    x = 21,877,959,744/68,340
  6. Step 6: Final answer
    x = 320,134.03

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.