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Finding the Third Proportional to 68,734 and 148,700

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Solution

The third proportional to 68,734 and 148,700 is: 321,699.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,734 : 148,700 = 148,700 : x
  2. Step 2: Convert to fraction form
    68,734/148,700 = 148,700/x
  3. Step 3: Cross multiply
    68,734x = 148,700 × 148,700
  4. Step 4: Simplify right side
    68,734x = 22,111,690,000
  5. Step 5: Solve for x
    x = 22,111,690,000/68,734
  6. Step 6: Final answer
    x = 321,699.45

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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.