Home / 207,945.62-311,885.89-67,703.30

Finding the Fourth Proportional to 207,945.62, 311,885.89 and 67,703.30

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Solution

The fourth proportional to 207,945.62, 311,885.89 and 67,703.30 is: 101,544.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,945.62 : 311,885.89 = 67,703.30 : x
  2. Step 2: Convert to fraction form
    207,945.62/311,885.89 = 67,703.30/x
  3. Step 3: Cross multiply
    207,945.62x = 311,885.89 × 67,703.30
  4. Step 4: Simplify right side
    207,945.62x = 21,115,703,976.44
  5. Step 5: Solve for x
    x = 21,115,703,976.44/207,945.62
  6. Step 6: Final answer
    x = 101,544.36

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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.