Home / 185,617.73-256,138.35-109,139.96

Finding the Fourth Proportional to 185,617.73, 256,138.35 and 109,139.96

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Solution

The fourth proportional to 185,617.73, 256,138.35 and 109,139.96 is: 150,604.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,617.73 : 256,138.35 = 109,139.96 : x
  2. Step 2: Convert to fraction form
    185,617.73/256,138.35 = 109,139.96/x
  3. Step 3: Cross multiply
    185,617.73x = 256,138.35 × 109,139.96
  4. Step 4: Simplify right side
    185,617.73x = 27,954,929,273.47
  5. Step 5: Solve for x
    x = 27,954,929,273.47/185,617.73
  6. Step 6: Final answer
    x = 150,604.84

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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.