Home / 143,472.10-215,234.26-47,414.80

Finding the Fourth Proportional to 143,472.10, 215,234.26 and 47,414.80

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Solution

The fourth proportional to 143,472.10, 215,234.26 and 47,414.80 is: 71,130.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,472.10 : 215,234.26 = 47,414.80 : x
  2. Step 2: Convert to fraction form
    143,472.10/215,234.26 = 47,414.80/x
  3. Step 3: Cross multiply
    143,472.10x = 215,234.26 × 47,414.80
  4. Step 4: Simplify right side
    143,472.10x = 10,205,289,391.05
  5. Step 5: Solve for x
    x = 10,205,289,391.05/143,472.10
  6. Step 6: Final answer
    x = 71,130.83

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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.