Home / 126,292.82-189,439.43-84,255.03

Finding the Fourth Proportional to 126,292.82, 189,439.43 and 84,255.03

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Solution

The fourth proportional to 126,292.82, 189,439.43 and 84,255.03 is: 126,382.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,292.82 : 189,439.43 = 84,255.03 : x
  2. Step 2: Convert to fraction form
    126,292.82/189,439.43 = 84,255.03/x
  3. Step 3: Cross multiply
    126,292.82x = 189,439.43 × 84,255.03
  4. Step 4: Simplify right side
    126,292.82x = 15,961,224,436.56
  5. Step 5: Solve for x
    x = 15,961,224,436.56/126,292.82
  6. Step 6: Final answer
    x = 126,382.68

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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.