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Finding the Third Proportional to 79,661.25 and 172,392.75

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Solution

The third proportional to 79,661.25 and 172,392.75 is: 373,070.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,661.25 : 172,392.75 = 172,392.75 : x
  2. Step 2: Convert to fraction form
    79,661.25/172,392.75 = 172,392.75/x
  3. Step 3: Cross multiply
    79,661.25x = 172,392.75 × 172,392.75
  4. Step 4: Simplify right side
    79,661.25x = 29,719,260,252.56
  5. Step 5: Solve for x
    x = 29,719,260,252.56/79,661.25
  6. Step 6: Final answer
    x = 373,070.47

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.