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Finding the Third Proportional to 78,203.25 and 125,914.50

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Solution

The third proportional to 78,203.25 and 125,914.50 is: 202,734.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,203.25 : 125,914.50 = 125,914.50 : x
  2. Step 2: Convert to fraction form
    78,203.25/125,914.50 = 125,914.50/x
  3. Step 3: Cross multiply
    78,203.25x = 125,914.50 × 125,914.50
  4. Step 4: Simplify right side
    78,203.25x = 15,854,461,310.25
  5. Step 5: Solve for x
    x = 15,854,461,310.25/78,203.25
  6. Step 6: Final answer
    x = 202,734.05

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.