Home / 213,066.86-319,517.22-79,874.44

Finding the Fourth Proportional to 213,066.86, 319,517.22 and 79,874.44

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Solution

The fourth proportional to 213,066.86, 319,517.22 and 79,874.44 is: 119,780.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,066.86 : 319,517.22 = 79,874.44 : x
  2. Step 2: Convert to fraction form
    213,066.86/319,517.22 = 79,874.44/x
  3. Step 3: Cross multiply
    213,066.86x = 319,517.22 × 79,874.44
  4. Step 4: Simplify right side
    213,066.86x = 25,521,258,518.59
  5. Step 5: Solve for x
    x = 25,521,258,518.59/213,066.86
  6. Step 6: Final answer
    x = 119,780.52

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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.