Home / 127,440.12-191,147.81-38,694.39

Finding the Fourth Proportional to 127,440.12, 191,147.81 and 38,694.39

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Solution

The fourth proportional to 127,440.12, 191,147.81 and 38,694.39 is: 58,037.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,440.12 : 191,147.81 = 38,694.39 : x
  2. Step 2: Convert to fraction form
    127,440.12/191,147.81 = 38,694.39/x
  3. Step 3: Cross multiply
    127,440.12x = 191,147.81 × 38,694.39
  4. Step 4: Simplify right side
    127,440.12x = 7,396,347,907.79
  5. Step 5: Solve for x
    x = 7,396,347,907.79/127,440.12
  6. Step 6: Final answer
    x = 58,037.83

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1.5x scale

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.