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Finding the Third Proportional to 78,540.50 and 124,850.50

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Solution

The third proportional to 78,540.50 and 124,850.50 is: 198,466.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,540.50 : 124,850.50 = 124,850.50 : x
  2. Step 2: Convert to fraction form
    78,540.50/124,850.50 = 124,850.50/x
  3. Step 3: Cross multiply
    78,540.50x = 124,850.50 × 124,850.50
  4. Step 4: Simplify right side
    78,540.50x = 15,587,647,350.25
  5. Step 5: Solve for x
    x = 15,587,647,350.25/78,540.50
  6. Step 6: Final answer
    x = 198,466.36

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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.