Home / 185,918.19-256,540.40-109,391.79

Finding the Fourth Proportional to 185,918.19, 256,540.40 and 109,391.79

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Solution

The fourth proportional to 185,918.19, 256,540.40 and 109,391.79 is: 150,944.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,918.19 : 256,540.40 = 109,391.79 : x
  2. Step 2: Convert to fraction form
    185,918.19/256,540.40 = 109,391.79/x
  3. Step 3: Cross multiply
    185,918.19x = 256,540.40 × 109,391.79
  4. Step 4: Simplify right side
    185,918.19x = 28,063,413,016.36
  5. Step 5: Solve for x
    x = 28,063,413,016.36/185,918.19
  6. Step 6: Final answer
    x = 150,944.96

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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.