Home / 189,741.78-261,833.58-104,853.78

Finding the Fourth Proportional to 189,741.78, 261,833.58 and 104,853.78

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Solution

The fourth proportional to 189,741.78, 261,833.58 and 104,853.78 is: 144,692.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,741.78 : 261,833.58 = 104,853.78 : x
  2. Step 2: Convert to fraction form
    189,741.78/261,833.58 = 104,853.78/x
  3. Step 3: Cross multiply
    189,741.78x = 261,833.58 × 104,853.78
  4. Step 4: Simplify right side
    189,741.78x = 27,454,240,593.93
  5. Step 5: Solve for x
    x = 27,454,240,593.93/189,741.78
  6. Step 6: Final answer
    x = 144,692.65

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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.