Home / 213,901.86-321,168.20-119,316.84

Finding the Fourth Proportional to 213,901.86, 321,168.20 and 119,316.84

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Solution

The fourth proportional to 213,901.86, 321,168.20 and 119,316.84 is: 179,151.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,901.86 : 321,168.20 = 119,316.84 : x
  2. Step 2: Convert to fraction form
    213,901.86/321,168.20 = 119,316.84/x
  3. Step 3: Cross multiply
    213,901.86x = 321,168.20 × 119,316.84
  4. Step 4: Simplify right side
    213,901.86x = 38,320,774,732.49
  5. Step 5: Solve for x
    x = 38,320,774,732.49/213,901.86
  6. Step 6: Final answer
    x = 179,151.20

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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.