Home / 213,895.90-321,159.25-119,310.88

Finding the Fourth Proportional to 213,895.90, 321,159.25 and 119,310.88

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Solution

The fourth proportional to 213,895.90, 321,159.25 and 119,310.88 is: 179,142.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,895.90 : 321,159.25 = 119,310.88 : x
  2. Step 2: Convert to fraction form
    213,895.90/321,159.25 = 119,310.88/x
  3. Step 3: Cross multiply
    213,895.90x = 321,159.25 × 119,310.88
  4. Step 4: Simplify right side
    213,895.90x = 38,317,793,924.88
  5. Step 5: Solve for x
    x = 38,317,793,924.88/213,895.90
  6. Step 6: Final answer
    x = 179,142.26

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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.