Home / 189,722.12-261,833.09-104,855.58

Finding the Fourth Proportional to 189,722.12, 261,833.09 and 104,855.58

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Solution

The fourth proportional to 189,722.12, 261,833.09 and 104,855.58 is: 144,709.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,722.12 : 261,833.09 = 104,855.58 : x
  2. Step 2: Convert to fraction form
    189,722.12/261,833.09 = 104,855.58/x
  3. Step 3: Cross multiply
    189,722.12x = 261,833.09 × 104,855.58
  4. Step 4: Simplify right side
    189,722.12x = 27,454,660,515.14
  5. Step 5: Solve for x
    x = 27,454,660,515.14/189,722.12
  6. Step 6: Final answer
    x = 144,709.86

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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.