Home / 207,348.85-311,072.63-67,107.47

Finding the Fourth Proportional to 207,348.85, 311,072.63 and 67,107.47

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Solution

The fourth proportional to 207,348.85, 311,072.63 and 67,107.47 is: 100,677.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,348.85 : 311,072.63 = 67,107.47 : x
  2. Step 2: Convert to fraction form
    207,348.85/311,072.63 = 67,107.47/x
  3. Step 3: Cross multiply
    207,348.85x = 311,072.63 × 67,107.47
  4. Step 4: Simplify right side
    207,348.85x = 20,875,297,185.55
  5. Step 5: Solve for x
    x = 20,875,297,185.55/207,348.85
  6. Step 6: Final answer
    x = 100,677.18

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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.