Home / 213,747.20-320,458.80-108,641.60

Finding the Fourth Proportional to 213,747.20, 320,458.80 and 108,641.60

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Solution

The fourth proportional to 213,747.20, 320,458.80 and 108,641.60 is: 162,880.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,747.20 : 320,458.80 = 108,641.60 : x
  2. Step 2: Convert to fraction form
    213,747.20/320,458.80 = 108,641.60/x
  3. Step 3: Cross multiply
    213,747.20x = 320,458.80 × 108,641.60
  4. Step 4: Simplify right side
    213,747.20x = 34,815,156,766.08
  5. Step 5: Solve for x
    x = 34,815,156,766.08/213,747.20
  6. Step 6: Final answer
    x = 162,880.06

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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.