Home / 94,540.80-141,811.20-76,826.10

Finding the Fourth Proportional to 94,540.80, 141,811.20 and 76,826.10

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Solution

The fourth proportional to 94,540.80, 141,811.20 and 76,826.10 is: 115,239.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,540.80 : 141,811.20 = 76,826.10 : x
  2. Step 2: Convert to fraction form
    94,540.80/141,811.20 = 76,826.10/x
  3. Step 3: Cross multiply
    94,540.80x = 141,811.20 × 76,826.10
  4. Step 4: Simplify right side
    94,540.80x = 10,894,801,432.32
  5. Step 5: Solve for x
    x = 10,894,801,432.32/94,540.80
  6. Step 6: Final answer
    x = 115,239.15

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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.