Home / 189,817.49-261,940.83-113,349.44

Finding the Fourth Proportional to 189,817.49, 261,940.83 and 113,349.44

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Solution

The fourth proportional to 189,817.49, 261,940.83 and 113,349.44 is: 156,417.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,817.49 : 261,940.83 = 113,349.44 : x
  2. Step 2: Convert to fraction form
    189,817.49/261,940.83 = 113,349.44/x
  3. Step 3: Cross multiply
    189,817.49x = 261,940.83 × 113,349.44
  4. Step 4: Simplify right side
    189,817.49x = 29,690,846,393.64
  5. Step 5: Solve for x
    x = 29,690,846,393.64/189,817.49
  6. Step 6: Final answer
    x = 156,417.86

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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.