Home / 208,867.08-313,351.65-66,712.38

Finding the Fourth Proportional to 208,867.08, 313,351.65 and 66,712.38

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Solution

The fourth proportional to 208,867.08, 313,351.65 and 66,712.38 is: 100,084.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,867.08 : 313,351.65 = 66,712.38 : x
  2. Step 2: Convert to fraction form
    208,867.08/313,351.65 = 66,712.38/x
  3. Step 3: Cross multiply
    208,867.08x = 313,351.65 × 66,712.38
  4. Step 4: Simplify right side
    208,867.08x = 20,904,435,523.50
  5. Step 5: Solve for x
    x = 20,904,435,523.50/208,867.08
  6. Step 6: Final answer
    x = 100,084.87

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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.