Home / 126,037.16-189,083.78-54,971.30

Finding the Fourth Proportional to 126,037.16, 189,083.78 and 54,971.30

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Solution

The fourth proportional to 126,037.16, 189,083.78 and 54,971.30 is: 82,469.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,037.16 : 189,083.78 = 54,971.30 : x
  2. Step 2: Convert to fraction form
    126,037.16/189,083.78 = 54,971.30/x
  3. Step 3: Cross multiply
    126,037.16x = 189,083.78 × 54,971.30
  4. Step 4: Simplify right side
    126,037.16x = 10,394,179,975.24
  5. Step 5: Solve for x
    x = 10,394,179,975.24/126,037.16
  6. Step 6: Final answer
    x = 82,469.17

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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.