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Finding the Third Proportional to 79,921.69 and 173,512.13

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Solution

The third proportional to 79,921.69 and 173,512.13 is: 376,699.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,921.69 : 173,512.13 = 173,512.13 : x
  2. Step 2: Convert to fraction form
    79,921.69/173,512.13 = 173,512.13/x
  3. Step 3: Cross multiply
    79,921.69x = 173,512.13 × 173,512.13
  4. Step 4: Simplify right side
    79,921.69x = 30,106,457,522.02
  5. Step 5: Solve for x
    x = 30,106,457,522.02/79,921.69
  6. Step 6: Final answer
    x = 376,699.47

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.