Home / 211,488.42-317,105.90-67,331.94

Finding the Fourth Proportional to 211,488.42, 317,105.90 and 67,331.94

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Solution

The fourth proportional to 211,488.42, 317,105.90 and 67,331.94 is: 100,957.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,488.42 : 317,105.90 = 67,331.94 : x
  2. Step 2: Convert to fraction form
    211,488.42/317,105.90 = 67,331.94/x
  3. Step 3: Cross multiply
    211,488.42x = 317,105.90 × 67,331.94
  4. Step 4: Simplify right side
    211,488.42x = 21,351,355,432.45
  5. Step 5: Solve for x
    x = 21,351,355,432.45/211,488.42
  6. Step 6: Final answer
    x = 100,957.56

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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.