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Finding the Third Proportional to 106,939.50 and 149,503.50

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Solution

The third proportional to 106,939.50 and 149,503.50 is: 209,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,939.50 : 149,503.50 = 149,503.50 : x
  2. Step 2: Convert to fraction form
    106,939.50/149,503.50 = 149,503.50/x
  3. Step 3: Cross multiply
    106,939.50x = 149,503.50 × 149,503.50
  4. Step 4: Simplify right side
    106,939.50x = 22,351,296,512.25
  5. Step 5: Solve for x
    x = 22,351,296,512.25/106,939.50
  6. Step 6: Final answer
    x = 209,008.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.