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Finding the Third Proportional to 78,872.25 and 110,671.13

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Solution

The third proportional to 78,872.25 and 110,671.13 is: 155,290.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,872.25 : 110,671.13 = 110,671.13 : x
  2. Step 2: Convert to fraction form
    78,872.25/110,671.13 = 110,671.13/x
  3. Step 3: Cross multiply
    78,872.25x = 110,671.13 × 110,671.13
  4. Step 4: Simplify right side
    78,872.25x = 12,248,097,908.77
  5. Step 5: Solve for x
    x = 12,248,097,908.77/78,872.25
  6. Step 6: Final answer
    x = 155,290.33

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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.