Home / 127,086.09-190,630.51-38,340.37

Finding the Fourth Proportional to 127,086.09, 190,630.51 and 38,340.37

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Solution

The fourth proportional to 127,086.09, 190,630.51 and 38,340.37 is: 57,510.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,086.09 : 190,630.51 = 38,340.37 : x
  2. Step 2: Convert to fraction form
    127,086.09/190,630.51 = 38,340.37/x
  3. Step 3: Cross multiply
    127,086.09x = 190,630.51 × 38,340.37
  4. Step 4: Simplify right side
    127,086.09x = 7,308,844,286.69
  5. Step 5: Solve for x
    x = 7,308,844,286.69/127,086.09
  6. Step 6: Final answer
    x = 57,510.97

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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.