Home / 205,747.41-308,676.57-85,764.48

Finding the Fourth Proportional to 205,747.41, 308,676.57 and 85,764.48

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Solution

The fourth proportional to 205,747.41, 308,676.57 and 85,764.48 is: 128,669.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,747.41 : 308,676.57 = 85,764.48 : x
  2. Step 2: Convert to fraction form
    205,747.41/308,676.57 = 85,764.48/x
  3. Step 3: Cross multiply
    205,747.41x = 308,676.57 × 85,764.48
  4. Step 4: Simplify right side
    205,747.41x = 26,473,485,514.23
  5. Step 5: Solve for x
    x = 26,473,485,514.23/205,747.41
  6. Step 6: Final answer
    x = 128,669.84

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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.