Home / 189,694.92-261,778.46-104,811.38

Finding the Fourth Proportional to 189,694.92, 261,778.46 and 104,811.38

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Solution

The fourth proportional to 189,694.92, 261,778.46 and 104,811.38 is: 144,639.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,694.92 : 261,778.46 = 104,811.38 : x
  2. Step 2: Convert to fraction form
    189,694.92/261,778.46 = 104,811.38/x
  3. Step 3: Cross multiply
    189,694.92x = 261,778.46 × 104,811.38
  4. Step 4: Simplify right side
    189,694.92x = 27,437,359,813.93
  5. Step 5: Solve for x
    x = 27,437,359,813.93/189,694.92
  6. Step 6: Final answer
    x = 144,639.40

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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.