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Finding the Third Proportional to 81,868.50 and 112,029.75

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Solution

The third proportional to 81,868.50 and 112,029.75 is: 153,302.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,868.50 : 112,029.75 = 112,029.75 : x
  2. Step 2: Convert to fraction form
    81,868.50/112,029.75 = 112,029.75/x
  3. Step 3: Cross multiply
    81,868.50x = 112,029.75 × 112,029.75
  4. Step 4: Simplify right side
    81,868.50x = 12,550,664,885.06
  5. Step 5: Solve for x
    x = 12,550,664,885.06/81,868.50
  6. Step 6: Final answer
    x = 153,302.73

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.