Home / 236,969.85-327,018.42-129,540.36

Finding the Fourth Proportional to 236,969.85, 327,018.42 and 129,540.36

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Solution

The fourth proportional to 236,969.85, 327,018.42 and 129,540.36 is: 178,765.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,969.85 : 327,018.42 = 129,540.36 : x
  2. Step 2: Convert to fraction form
    236,969.85/327,018.42 = 129,540.36/x
  3. Step 3: Cross multiply
    236,969.85x = 327,018.42 × 129,540.36
  4. Step 4: Simplify right side
    236,969.85x = 42,362,083,853.43
  5. Step 5: Solve for x
    x = 42,362,083,853.43/236,969.85
  6. Step 6: Final answer
    x = 178,765.71

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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.