Home / 189,839.26-261,983.46-104,961.79

Finding the Fourth Proportional to 189,839.26, 261,983.46 and 104,961.79

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Solution

The fourth proportional to 189,839.26, 261,983.46 and 104,961.79 is: 144,850.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,839.26 : 261,983.46 = 104,961.79 : x
  2. Step 2: Convert to fraction form
    189,839.26/261,983.46 = 104,961.79/x
  3. Step 3: Cross multiply
    189,839.26x = 261,983.46 × 104,961.79
  4. Step 4: Simplify right side
    189,839.26x = 27,498,252,911.99
  5. Step 5: Solve for x
    x = 27,498,252,911.99/189,839.26
  6. Step 6: Final answer
    x = 144,850.19

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1.5x scale

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.