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Finding the Third Proportional to 81,025.31 and 122,655.94

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Solution

The third proportional to 81,025.31 and 122,655.94 is: 185,676.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,025.31 : 122,655.94 = 122,655.94 : x
  2. Step 2: Convert to fraction form
    81,025.31/122,655.94 = 122,655.94/x
  3. Step 3: Cross multiply
    81,025.31x = 122,655.94 × 122,655.94
  4. Step 4: Simplify right side
    81,025.31x = 15,044,479,004.00
  5. Step 5: Solve for x
    x = 15,044,479,004.00/81,025.31
  6. Step 6: Final answer
    x = 185,676.28

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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.