Home / 213,900.86-321,166.70-119,315.84

Finding the Fourth Proportional to 213,900.86, 321,166.70 and 119,315.84

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Solution

The fourth proportional to 213,900.86, 321,166.70 and 119,315.84 is: 179,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,900.86 : 321,166.70 = 119,315.84 : x
  2. Step 2: Convert to fraction form
    213,900.86/321,166.70 = 119,315.84/x
  3. Step 3: Cross multiply
    213,900.86x = 321,166.70 × 119,315.84
  4. Step 4: Simplify right side
    213,900.86x = 38,320,275,691.73
  5. Step 5: Solve for x
    x = 38,320,275,691.73/213,900.86
  6. Step 6: Final answer
    x = 179,149.70

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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.