Home / 236,218.18-325,976.70-128,789.14

Finding the Fourth Proportional to 236,218.18, 325,976.70 and 128,789.14

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Solution

The fourth proportional to 236,218.18, 325,976.70 and 128,789.14 is: 177,726.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,218.18 : 325,976.70 = 128,789.14 : x
  2. Step 2: Convert to fraction form
    236,218.18/325,976.70 = 128,789.14/x
  3. Step 3: Cross multiply
    236,218.18x = 325,976.70 × 128,789.14
  4. Step 4: Simplify right side
    236,218.18x = 41,982,258,853.04
  5. Step 5: Solve for x
    x = 41,982,258,853.04/236,218.18
  6. Step 6: Final answer
    x = 177,726.62

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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.