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Finding the Third Proportional to 77,942.25 and 117,615.38

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Solution

The third proportional to 77,942.25 and 117,615.38 is: 177,482.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,942.25 : 117,615.38 = 117,615.38 : x
  2. Step 2: Convert to fraction form
    77,942.25/117,615.38 = 117,615.38/x
  3. Step 3: Cross multiply
    77,942.25x = 117,615.38 × 117,615.38
  4. Step 4: Simplify right side
    77,942.25x = 13,833,376,436.39
  5. Step 5: Solve for x
    x = 13,833,376,436.39/77,942.25
  6. Step 6: Final answer
    x = 177,482.39

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.