Home / 189,644.13-261,716.83-109,071.71

Finding the Fourth Proportional to 189,644.13, 261,716.83 and 109,071.71

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Solution

The fourth proportional to 189,644.13, 261,716.83 and 109,071.71 is: 150,523.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,644.13 : 261,716.83 = 109,071.71 : x
  2. Step 2: Convert to fraction form
    189,644.13/261,716.83 = 109,071.71/x
  3. Step 3: Cross multiply
    189,644.13x = 261,716.83 × 109,071.71
  4. Step 4: Simplify right side
    189,644.13x = 28,545,902,183.88
  5. Step 5: Solve for x
    x = 28,545,902,183.88/189,644.13
  6. Step 6: Final answer
    x = 150,523.52

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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.