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Finding the Third Proportional to 78,530.50 and 125,078.75

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Solution

The third proportional to 78,530.50 and 125,078.75 is: 199,218.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,530.50 : 125,078.75 = 125,078.75 : x
  2. Step 2: Convert to fraction form
    78,530.50/125,078.75 = 125,078.75/x
  3. Step 3: Cross multiply
    78,530.50x = 125,078.75 × 125,078.75
  4. Step 4: Simplify right side
    78,530.50x = 15,644,693,701.56
  5. Step 5: Solve for x
    x = 15,644,693,701.56/78,530.50
  6. Step 6: Final answer
    x = 199,218.06

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.