Home / 126,888.27-190,332.55-38,141.78

Finding the Fourth Proportional to 126,888.27, 190,332.55 and 38,141.78

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Solution

The fourth proportional to 126,888.27, 190,332.55 and 38,141.78 is: 57,212.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,888.27 : 190,332.55 = 38,141.78 : x
  2. Step 2: Convert to fraction form
    126,888.27/190,332.55 = 38,141.78/x
  3. Step 3: Cross multiply
    126,888.27x = 190,332.55 × 38,141.78
  4. Step 4: Simplify right side
    126,888.27x = 7,259,621,297.28
  5. Step 5: Solve for x
    x = 7,259,621,297.28/126,888.27
  6. Step 6: Final answer
    x = 57,212.71

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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.