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Finding the Third Proportional to 87,571.50 and 135,871.50

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Solution

The third proportional to 87,571.50 and 135,871.50 is: 210,811.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,571.50 : 135,871.50 = 135,871.50 : x
  2. Step 2: Convert to fraction form
    87,571.50/135,871.50 = 135,871.50/x
  3. Step 3: Cross multiply
    87,571.50x = 135,871.50 × 135,871.50
  4. Step 4: Simplify right side
    87,571.50x = 18,461,064,512.25
  5. Step 5: Solve for x
    x = 18,461,064,512.25/87,571.50
  6. Step 6: Final answer
    x = 210,811.33

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.