Home / 126,405.72-189,619.92-32,912.28

Finding the Fourth Proportional to 126,405.72, 189,619.92 and 32,912.28

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Solution

The fourth proportional to 126,405.72, 189,619.92 and 32,912.28 is: 49,371.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,405.72 : 189,619.92 = 32,912.28 : x
  2. Step 2: Convert to fraction form
    126,405.72/189,619.92 = 32,912.28/x
  3. Step 3: Cross multiply
    126,405.72x = 189,619.92 × 32,912.28
  4. Step 4: Simplify right side
    126,405.72x = 6,240,823,900.62
  5. Step 5: Solve for x
    x = 6,240,823,900.62/126,405.72
  6. Step 6: Final answer
    x = 49,371.37

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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.