Home / 236,209.56-325,979.42-128,785.74

Finding the Fourth Proportional to 236,209.56, 325,979.42 and 128,785.74

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Solution

The fourth proportional to 236,209.56, 325,979.42 and 128,785.74 is: 177,729.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,209.56 : 325,979.42 = 128,785.74 : x
  2. Step 2: Convert to fraction form
    236,209.56/325,979.42 = 128,785.74/x
  3. Step 3: Cross multiply
    236,209.56x = 325,979.42 × 128,785.74
  4. Step 4: Simplify right side
    236,209.56x = 41,981,500,185.54
  5. Step 5: Solve for x
    x = 41,981,500,185.54/236,209.56
  6. Step 6: Final answer
    x = 177,729.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.