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Finding the Third Proportional to 85,871.25 and 126,319.50

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Solution

The third proportional to 85,871.25 and 126,319.50 is: 185,820.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,871.25 : 126,319.50 = 126,319.50 : x
  2. Step 2: Convert to fraction form
    85,871.25/126,319.50 = 126,319.50/x
  3. Step 3: Cross multiply
    85,871.25x = 126,319.50 × 126,319.50
  4. Step 4: Simplify right side
    85,871.25x = 15,956,616,080.25
  5. Step 5: Solve for x
    x = 15,956,616,080.25/85,871.25
  6. Step 6: Final answer
    x = 185,820.24

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.