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Finding the Third Proportional to 81,492.80 and 124,661.85

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Solution

The third proportional to 81,492.80 and 124,661.85 is: 190,698.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,492.80 : 124,661.85 = 124,661.85 : x
  2. Step 2: Convert to fraction form
    81,492.80/124,661.85 = 124,661.85/x
  3. Step 3: Cross multiply
    81,492.80x = 124,661.85 × 124,661.85
  4. Step 4: Simplify right side
    81,492.80x = 15,540,576,261.07
  5. Step 5: Solve for x
    x = 15,540,576,261.07/81,492.80
  6. Step 6: Final answer
    x = 190,698.76

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.