Home / 220,825.08-331,230.56-92,809.19

Finding the Fourth Proportional to 220,825.08, 331,230.56 and 92,809.19

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Solution

The fourth proportional to 220,825.08, 331,230.56 and 92,809.19 is: 139,210.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,825.08 : 331,230.56 = 92,809.19 : x
  2. Step 2: Convert to fraction form
    220,825.08/331,230.56 = 92,809.19/x
  3. Step 3: Cross multiply
    220,825.08x = 331,230.56 × 92,809.19
  4. Step 4: Simplify right side
    220,825.08x = 30,741,238,738.73
  5. Step 5: Solve for x
    x = 30,741,238,738.73/220,825.08
  6. Step 6: Final answer
    x = 139,210.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.