Home / 207,394.43-311,140.85-67,153.05

Finding the Fourth Proportional to 207,394.43, 311,140.85 and 67,153.05

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Solution

The fourth proportional to 207,394.43, 311,140.85 and 67,153.05 is: 100,745.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,394.43 : 311,140.85 = 67,153.05 : x
  2. Step 2: Convert to fraction form
    207,394.43/311,140.85 = 67,153.05/x
  3. Step 3: Cross multiply
    207,394.43x = 311,140.85 × 67,153.05
  4. Step 4: Simplify right side
    207,394.43x = 20,894,056,721.33
  5. Step 5: Solve for x
    x = 20,894,056,721.33/207,394.43
  6. Step 6: Final answer
    x = 100,745.51

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1.5x scale

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.