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Finding the Third Proportional to 77,982.75 and 108,653.06

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Solution

The third proportional to 77,982.75 and 108,653.06 is: 151,385.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,982.75 : 108,653.06 = 108,653.06 : x
  2. Step 2: Convert to fraction form
    77,982.75/108,653.06 = 108,653.06/x
  3. Step 3: Cross multiply
    77,982.75x = 108,653.06 × 108,653.06
  4. Step 4: Simplify right side
    77,982.75x = 11,805,487,990.63
  5. Step 5: Solve for x
    x = 11,805,487,990.63/77,982.75
  6. Step 6: Final answer
    x = 151,385.89

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.