Home / 129,520.20-194,324.42-79,020.33

Finding the Fourth Proportional to 129,520.20, 194,324.42 and 79,020.33

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Solution

The fourth proportional to 129,520.20, 194,324.42 and 79,020.33 is: 118,557.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,520.20 : 194,324.42 = 79,020.33 : x
  2. Step 2: Convert to fraction form
    129,520.20/194,324.42 = 79,020.33/x
  3. Step 3: Cross multiply
    129,520.20x = 194,324.42 × 79,020.33
  4. Step 4: Simplify right side
    129,520.20x = 15,355,579,229.71
  5. Step 5: Solve for x
    x = 15,355,579,229.71/129,520.20
  6. Step 6: Final answer
    x = 118,557.41

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1.5x scale

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.