Home / 207,817.86-311,629.91-107,951.25

Finding the Fourth Proportional to 207,817.86, 311,629.91 and 107,951.25

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Solution

The fourth proportional to 207,817.86, 311,629.91 and 107,951.25 is: 161,876.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,817.86 : 311,629.91 = 107,951.25 : x
  2. Step 2: Convert to fraction form
    207,817.86/311,629.91 = 107,951.25/x
  3. Step 3: Cross multiply
    207,817.86x = 311,629.91 × 107,951.25
  4. Step 4: Simplify right side
    207,817.86x = 33,640,837,782.13
  5. Step 5: Solve for x
    x = 33,640,837,782.13/207,817.86
  6. Step 6: Final answer
    x = 161,876.55

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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.