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Finding the Third Proportional to 118,810.50 and 172,865.25

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Solution

The third proportional to 118,810.50 and 172,865.25 is: 251,513.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,810.50 : 172,865.25 = 172,865.25 : x
  2. Step 2: Convert to fraction form
    118,810.50/172,865.25 = 172,865.25/x
  3. Step 3: Cross multiply
    118,810.50x = 172,865.25 × 172,865.25
  4. Step 4: Simplify right side
    118,810.50x = 29,882,394,657.56
  5. Step 5: Solve for x
    x = 29,882,394,657.56/118,810.50
  6. Step 6: Final answer
    x = 251,513.08

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.