Home / 120,198.59-180,292.87-31,450.13

Finding the Fourth Proportional to 120,198.59, 180,292.87 and 31,450.13

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Solution

The fourth proportional to 120,198.59, 180,292.87 and 31,450.13 is: 47,173.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,198.59 : 180,292.87 = 31,450.13 : x
  2. Step 2: Convert to fraction form
    120,198.59/180,292.87 = 31,450.13/x
  3. Step 3: Cross multiply
    120,198.59x = 180,292.87 × 31,450.13
  4. Step 4: Simplify right side
    120,198.59x = 5,670,234,520.59
  5. Step 5: Solve for x
    x = 5,670,234,520.59/120,198.59
  6. Step 6: Final answer
    x = 47,173.88

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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.