Home / 205,647.78-283,791.96-115,002.72

Finding the Fourth Proportional to 205,647.78, 283,791.96 and 115,002.72

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Solution

The fourth proportional to 205,647.78, 283,791.96 and 115,002.72 is: 158,702.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,647.78 : 283,791.96 = 115,002.72 : x
  2. Step 2: Convert to fraction form
    205,647.78/283,791.96 = 115,002.72/x
  3. Step 3: Cross multiply
    205,647.78x = 283,791.96 × 115,002.72
  4. Step 4: Simplify right side
    205,647.78x = 32,636,847,314.13
  5. Step 5: Solve for x
    x = 32,636,847,314.13/205,647.78
  6. Step 6: Final answer
    x = 158,702.65

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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.