Home / 207,977.40-311,966.09-67,736.02

Finding the Fourth Proportional to 207,977.40, 311,966.09 and 67,736.02

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Solution

The fourth proportional to 207,977.40, 311,966.09 and 67,736.02 is: 101,604.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,977.40 : 311,966.09 = 67,736.02 : x
  2. Step 2: Convert to fraction form
    207,977.40/311,966.09 = 67,736.02/x
  3. Step 3: Cross multiply
    207,977.40x = 311,966.09 × 67,736.02
  4. Step 4: Simplify right side
    207,977.40x = 21,131,341,311.56
  5. Step 5: Solve for x
    x = 21,131,341,311.56/207,977.40
  6. Step 6: Final answer
    x = 101,604.03

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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.