Home / 205,879.05-284,099.90-115,219.71

Finding the Fourth Proportional to 205,879.05, 284,099.90 and 115,219.71

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Solution

The fourth proportional to 205,879.05, 284,099.90 and 115,219.71 is: 158,995.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,879.05 : 284,099.90 = 115,219.71 : x
  2. Step 2: Convert to fraction form
    205,879.05/284,099.90 = 115,219.71/x
  3. Step 3: Cross multiply
    205,879.05x = 284,099.90 × 115,219.71
  4. Step 4: Simplify right side
    205,879.05x = 32,733,907,512.93
  5. Step 5: Solve for x
    x = 32,733,907,512.93/205,879.05
  6. Step 6: Final answer
    x = 158,995.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.