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Finding the Third Proportional to 81,028.13 and 122,659.88

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Solution

The third proportional to 81,028.13 and 122,659.88 is: 185,681.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,028.13 : 122,659.88 = 122,659.88 : x
  2. Step 2: Convert to fraction form
    81,028.13/122,659.88 = 122,659.88/x
  3. Step 3: Cross multiply
    81,028.13x = 122,659.88 × 122,659.88
  4. Step 4: Simplify right side
    81,028.13x = 15,045,444,935.02
  5. Step 5: Solve for x
    x = 15,045,444,935.02/81,028.13
  6. Step 6: Final answer
    x = 185,681.76

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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.