Home / 207,966.30-311,949.45-67,739.10

Finding the Fourth Proportional to 207,966.30, 311,949.45 and 67,739.10

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Solution

The fourth proportional to 207,966.30, 311,949.45 and 67,739.10 is: 101,608.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,966.30 : 311,949.45 = 67,739.10 : x
  2. Step 2: Convert to fraction form
    207,966.30/311,949.45 = 67,739.10/x
  3. Step 3: Cross multiply
    207,966.30x = 311,949.45 × 67,739.10
  4. Step 4: Simplify right side
    207,966.30x = 21,131,174,988.50
  5. Step 5: Solve for x
    x = 21,131,174,988.50/207,966.30
  6. Step 6: Final answer
    x = 101,608.65

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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.