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Finding the Third Proportional to 68,991.75 and 148,871.25

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Solution

The third proportional to 68,991.75 and 148,871.25 is: 321,236.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,991.75 : 148,871.25 = 148,871.25 : x
  2. Step 2: Convert to fraction form
    68,991.75/148,871.25 = 148,871.25/x
  3. Step 3: Cross multiply
    68,991.75x = 148,871.25 × 148,871.25
  4. Step 4: Simplify right side
    68,991.75x = 22,162,649,076.56
  5. Step 5: Solve for x
    x = 22,162,649,076.56/68,991.75
  6. Step 6: Final answer
    x = 321,236.22

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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.