Home / 205,648.78-283,793.34-115,003.72

Finding the Fourth Proportional to 205,648.78, 283,793.34 and 115,003.72

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Solution

The fourth proportional to 205,648.78, 283,793.34 and 115,003.72 is: 158,704.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,648.78 : 283,793.34 = 115,003.72 : x
  2. Step 2: Convert to fraction form
    205,648.78/283,793.34 = 115,003.72/x
  3. Step 3: Cross multiply
    205,648.78x = 283,793.34 × 115,003.72
  4. Step 4: Simplify right side
    205,648.78x = 32,637,289,811.22
  5. Step 5: Solve for x
    x = 32,637,289,811.22/205,648.78
  6. Step 6: Final answer
    x = 158,704.03

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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.