Home / 212,576.10-318,584.97-100,103.82

Finding the Fourth Proportional to 212,576.10, 318,584.97 and 100,103.82

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Solution

The fourth proportional to 212,576.10, 318,584.97 and 100,103.82 is: 150,024.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,576.10 : 318,584.97 = 100,103.82 : x
  2. Step 2: Convert to fraction form
    212,576.10/318,584.97 = 100,103.82/x
  3. Step 3: Cross multiply
    212,576.10x = 318,584.97 × 100,103.82
  4. Step 4: Simplify right side
    212,576.10x = 31,891,572,491.59
  5. Step 5: Solve for x
    x = 31,891,572,491.59/212,576.10
  6. Step 6: Final answer
    x = 150,024.26

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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.