Home / 102,554.35-141,524.70-57,231.85

Finding the Fourth Proportional to 102,554.35, 141,524.70 and 57,231.85

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Solution

The fourth proportional to 102,554.35, 141,524.70 and 57,231.85 is: 78,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,554.35 : 141,524.70 = 57,231.85 : x
  2. Step 2: Convert to fraction form
    102,554.35/141,524.70 = 57,231.85/x
  3. Step 3: Cross multiply
    102,554.35x = 141,524.70 × 57,231.85
  4. Step 4: Simplify right side
    102,554.35x = 8,099,720,401.70
  5. Step 5: Solve for x
    x = 8,099,720,401.70/102,554.35
  6. Step 6: Final answer
    x = 78,979.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.