Home / 189,286.56-261,179.10-113,839.92

Finding the Fourth Proportional to 189,286.56, 261,179.10 and 113,839.92

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Solution

The fourth proportional to 189,286.56, 261,179.10 and 113,839.92 is: 157,077.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,286.56 : 261,179.10 = 113,839.92 : x
  2. Step 2: Convert to fraction form
    189,286.56/261,179.10 = 113,839.92/x
  3. Step 3: Cross multiply
    189,286.56x = 261,179.10 × 113,839.92
  4. Step 4: Simplify right side
    189,286.56x = 29,732,607,849.67
  5. Step 5: Solve for x
    x = 29,732,607,849.67/189,286.56
  6. Step 6: Final answer
    x = 157,077.23

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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.