Home / 213,072.02-319,524.95-79,879.68

Finding the Fourth Proportional to 213,072.02, 319,524.95 and 79,879.68

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Solution

The fourth proportional to 213,072.02, 319,524.95 and 79,879.68 is: 119,788.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,072.02 : 319,524.95 = 79,879.68 : x
  2. Step 2: Convert to fraction form
    213,072.02/319,524.95 = 79,879.68/x
  3. Step 3: Cross multiply
    213,072.02x = 319,524.95 × 79,879.68
  4. Step 4: Simplify right side
    213,072.02x = 25,523,550,758.02
  5. Step 5: Solve for x
    x = 25,523,550,758.02/213,072.02
  6. Step 6: Final answer
    x = 119,788.37

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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.