Home / 208,868.08-313,353.15-66,713.38

Finding the Fourth Proportional to 208,868.08, 313,353.15 and 66,713.38

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Solution

The fourth proportional to 208,868.08, 313,353.15 and 66,713.38 is: 100,086.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,868.08 : 313,353.15 = 66,713.38 : x
  2. Step 2: Convert to fraction form
    208,868.08/313,353.15 = 66,713.38/x
  3. Step 3: Cross multiply
    208,868.08x = 313,353.15 × 66,713.38
  4. Step 4: Simplify right side
    208,868.08x = 20,904,847,770.15
  5. Step 5: Solve for x
    x = 20,904,847,770.15/208,868.08
  6. Step 6: Final answer
    x = 100,086.37

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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.