Home / 236,215.98-325,979.96-128,786.79

Finding the Fourth Proportional to 236,215.98, 325,979.96 and 128,786.79

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Solution

The fourth proportional to 236,215.98, 325,979.96 and 128,786.79 is: 177,726.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,215.98 : 325,979.96 = 128,786.79 : x
  2. Step 2: Convert to fraction form
    236,215.98/325,979.96 = 128,786.79/x
  3. Step 3: Cross multiply
    236,215.98x = 325,979.96 × 128,786.79
  4. Step 4: Simplify right side
    236,215.98x = 41,981,912,652.73
  5. Step 5: Solve for x
    x = 41,981,912,652.73/236,215.98
  6. Step 6: Final answer
    x = 177,726.81

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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.