Home / 213,895.64-321,158.87-119,310.63

Finding the Fourth Proportional to 213,895.64, 321,158.87 and 119,310.63

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Solution

The fourth proportional to 213,895.64, 321,158.87 and 119,310.63 is: 179,141.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,895.64 : 321,158.87 = 119,310.63 : x
  2. Step 2: Convert to fraction form
    213,895.64/321,158.87 = 119,310.63/x
  3. Step 3: Cross multiply
    213,895.64x = 321,158.87 × 119,310.63
  4. Step 4: Simplify right side
    213,895.64x = 38,317,665,308.89
  5. Step 5: Solve for x
    x = 38,317,665,308.89/213,895.64
  6. Step 6: Final answer
    x = 179,141.87

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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.