Home / 127,439.84-191,147.39-38,694.11

Finding the Fourth Proportional to 127,439.84, 191,147.39 and 38,694.11

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Solution

The fourth proportional to 127,439.84, 191,147.39 and 38,694.11 is: 58,037.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,439.84 : 191,147.39 = 38,694.11 : x
  2. Step 2: Convert to fraction form
    127,439.84/191,147.39 = 38,694.11/x
  3. Step 3: Cross multiply
    127,439.84x = 191,147.39 × 38,694.11
  4. Step 4: Simplify right side
    127,439.84x = 7,396,278,709.48
  5. Step 5: Solve for x
    x = 7,396,278,709.48/127,439.84
  6. Step 6: Final answer
    x = 58,037.41

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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.