Home / 427,576.35-641,385.18-112,033.56

Finding the Fourth Proportional to 427,576.35, 641,385.18 and 112,033.56

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Solution

The fourth proportional to 427,576.35, 641,385.18 and 112,033.56 is: 168,055.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,576.35 : 641,385.18 = 112,033.56 : x
  2. Step 2: Convert to fraction form
    427,576.35/641,385.18 = 112,033.56/x
  3. Step 3: Cross multiply
    427,576.35x = 641,385.18 × 112,033.56
  4. Step 4: Simplify right side
    427,576.35x = 71,856,665,046.64
  5. Step 5: Solve for x
    x = 71,856,665,046.64/427,576.35
  6. Step 6: Final answer
    x = 168,055.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.