Home / 189,723.87-261,811.64-109,177.27

Finding the Fourth Proportional to 189,723.87, 261,811.64 and 109,177.27

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Solution

The fourth proportional to 189,723.87, 261,811.64 and 109,177.27 is: 150,660.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,723.87 : 261,811.64 = 109,177.27 : x
  2. Step 2: Convert to fraction form
    189,723.87/261,811.64 = 109,177.27/x
  3. Step 3: Cross multiply
    189,723.87x = 261,811.64 × 109,177.27
  4. Step 4: Simplify right side
    189,723.87x = 28,583,879,727.84
  5. Step 5: Solve for x
    x = 28,583,879,727.84/189,723.87
  6. Step 6: Final answer
    x = 150,660.43

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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.