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Finding the Third Proportional to 77,990.25 and 118,626.75

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Solution

The third proportional to 77,990.25 and 118,626.75 is: 180,436.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,990.25 : 118,626.75 = 118,626.75 : x
  2. Step 2: Convert to fraction form
    77,990.25/118,626.75 = 118,626.75/x
  3. Step 3: Cross multiply
    77,990.25x = 118,626.75 × 118,626.75
  4. Step 4: Simplify right side
    77,990.25x = 14,072,305,815.56
  5. Step 5: Solve for x
    x = 14,072,305,815.56/77,990.25
  6. Step 6: Final answer
    x = 180,436.73

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.