Home / 88,020.26-131,715-76,214.78

Finding the Fourth Proportional to 88,020.26, 131,715 and 76,214.78

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Solution

The fourth proportional to 88,020.26, 131,715 and 76,214.78 is: 114,049.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,020.26 : 131,715 = 76,214.78 : x
  2. Step 2: Convert to fraction form
    88,020.26/131,715 = 76,214.78/x
  3. Step 3: Cross multiply
    88,020.26x = 131,715 × 76,214.78
  4. Step 4: Simplify right side
    88,020.26x = 10,038,629,747.70
  5. Step 5: Solve for x
    x = 10,038,629,747.70/88,020.26
  6. Step 6: Final answer
    x = 114,049.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.