Home / 126,125.65-189,183-31,353.85

Finding the Fourth Proportional to 126,125.65, 189,183 and 31,353.85

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Solution

The fourth proportional to 126,125.65, 189,183 and 31,353.85 is: 47,029.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,125.65 : 189,183 = 31,353.85 : x
  2. Step 2: Convert to fraction form
    126,125.65/189,183 = 31,353.85/x
  3. Step 3: Cross multiply
    126,125.65x = 189,183 × 31,353.85
  4. Step 4: Simplify right side
    126,125.65x = 5,931,614,458.64
  5. Step 5: Solve for x
    x = 5,931,614,458.64/126,125.65
  6. Step 6: Final answer
    x = 47,029.41

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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.