Home / 127,105.20-190,659.24-38,359.56

Finding the Fourth Proportional to 127,105.20, 190,659.24 and 38,359.56

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Solution

The fourth proportional to 127,105.20, 190,659.24 and 38,359.56 is: 57,539.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,105.20 : 190,659.24 = 38,359.56 : x
  2. Step 2: Convert to fraction form
    127,105.20/190,659.24 = 38,359.56/x
  3. Step 3: Cross multiply
    127,105.20x = 190,659.24 × 38,359.56
  4. Step 4: Simplify right side
    127,105.20x = 7,313,604,556.33
  5. Step 5: Solve for x
    x = 7,313,604,556.33/127,105.20
  6. Step 6: Final answer
    x = 57,539.77

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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.