Home / 207,991.33-311,986.96-67,749.95

Finding the Fourth Proportional to 207,991.33, 311,986.96 and 67,749.95

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Solution

The fourth proportional to 207,991.33, 311,986.96 and 67,749.95 is: 101,624.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,991.33 : 311,986.96 = 67,749.95 : x
  2. Step 2: Convert to fraction form
    207,991.33/311,986.96 = 67,749.95/x
  3. Step 3: Cross multiply
    207,991.33x = 311,986.96 × 67,749.95
  4. Step 4: Simplify right side
    207,991.33x = 21,137,101,551.24
  5. Step 5: Solve for x
    x = 21,137,101,551.24/207,991.33
  6. Step 6: Final answer
    x = 101,624.92

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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.