Home / 189,576.39-261,621.88-112,118.44

Finding the Fourth Proportional to 189,576.39, 261,621.88 and 112,118.44

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Solution

The fourth proportional to 189,576.39, 261,621.88 and 112,118.44 is: 154,727.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,576.39 : 261,621.88 = 112,118.44 : x
  2. Step 2: Convert to fraction form
    189,576.39/261,621.88 = 112,118.44/x
  3. Step 3: Cross multiply
    189,576.39x = 261,621.88 × 112,118.44
  4. Step 4: Simplify right side
    189,576.39x = 29,332,635,186.77
  5. Step 5: Solve for x
    x = 29,332,635,186.77/189,576.39
  6. Step 6: Final answer
    x = 154,727.26

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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.