Home / 207,582.12-311,321.34-67,380.84

Finding the Fourth Proportional to 207,582.12, 311,321.34 and 67,380.84

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Solution

The fourth proportional to 207,582.12, 311,321.34 and 67,380.84 is: 101,054.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,582.12 : 311,321.34 = 67,380.84 : x
  2. Step 2: Convert to fraction form
    207,582.12/311,321.34 = 67,380.84/x
  3. Step 3: Cross multiply
    207,582.12x = 311,321.34 × 67,380.84
  4. Step 4: Simplify right side
    207,582.12x = 20,977,093,399.13
  5. Step 5: Solve for x
    x = 20,977,093,399.13/207,582.12
  6. Step 6: Final answer
    x = 101,054.43

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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.