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Finding the Third Proportional to 68,154.75 and 146,724.75

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Solution

The third proportional to 68,154.75 and 146,724.75 is: 315,871.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,154.75 : 146,724.75 = 146,724.75 : x
  2. Step 2: Convert to fraction form
    68,154.75/146,724.75 = 146,724.75/x
  3. Step 3: Cross multiply
    68,154.75x = 146,724.75 × 146,724.75
  4. Step 4: Simplify right side
    68,154.75x = 21,528,152,262.56
  5. Step 5: Solve for x
    x = 21,528,152,262.56/68,154.75
  6. Step 6: Final answer
    x = 315,871.63

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.