Home / 127,105.77-190,660.11-38,360.04

Finding the Fourth Proportional to 127,105.77, 190,660.11 and 38,360.04

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Solution

The fourth proportional to 127,105.77, 190,660.11 and 38,360.04 is: 57,540.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,105.77 : 190,660.11 = 38,360.04 : x
  2. Step 2: Convert to fraction form
    127,105.77/190,660.11 = 38,360.04/x
  3. Step 3: Cross multiply
    127,105.77x = 190,660.11 × 38,360.04
  4. Step 4: Simplify right side
    127,105.77x = 7,313,729,446.00
  5. Step 5: Solve for x
    x = 7,313,729,446.00/127,105.77
  6. Step 6: Final answer
    x = 57,540.50

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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.