Home / 126,027.20-189,040.81-103,751.24

Finding the Fourth Proportional to 126,027.20, 189,040.81 and 103,751.24

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Solution

The fourth proportional to 126,027.20, 189,040.81 and 103,751.24 is: 155,626.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,027.20 : 189,040.81 = 103,751.24 : x
  2. Step 2: Convert to fraction form
    126,027.20/189,040.81 = 103,751.24/x
  3. Step 3: Cross multiply
    126,027.20x = 189,040.81 × 103,751.24
  4. Step 4: Simplify right side
    126,027.20x = 19,613,218,661.33
  5. Step 5: Solve for x
    x = 19,613,218,661.33/126,027.20
  6. Step 6: Final answer
    x = 155,626.87

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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.