Home / 209,579.11-289,219.21-114,086.53

Finding the Fourth Proportional to 209,579.11, 289,219.21 and 114,086.53

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Solution

The fourth proportional to 209,579.11, 289,219.21 and 114,086.53 is: 157,439.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,579.11 : 289,219.21 = 114,086.53 : x
  2. Step 2: Convert to fraction form
    209,579.11/289,219.21 = 114,086.53/x
  3. Step 3: Cross multiply
    209,579.11x = 289,219.21 × 114,086.53
  4. Step 4: Simplify right side
    209,579.11x = 32,996,016,078.24
  5. Step 5: Solve for x
    x = 32,996,016,078.24/209,579.11
  6. Step 6: Final answer
    x = 157,439.43

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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.