Home / 127,106.70-190,661.49-38,361.06

Finding the Fourth Proportional to 127,106.70, 190,661.49 and 38,361.06

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Solution

The fourth proportional to 127,106.70, 190,661.49 and 38,361.06 is: 57,542.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,106.70 : 190,661.49 = 38,361.06 : x
  2. Step 2: Convert to fraction form
    127,106.70/190,661.49 = 38,361.06/x
  3. Step 3: Cross multiply
    127,106.70x = 190,661.49 × 38,361.06
  4. Step 4: Simplify right side
    127,106.70x = 7,313,976,857.58
  5. Step 5: Solve for x
    x = 7,313,976,857.58/127,106.70
  6. Step 6: Final answer
    x = 57,542.02

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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.