Home / 213,620.40-319,993.20-108,498.60

Finding the Fourth Proportional to 213,620.40, 319,993.20 and 108,498.60

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Solution

The fourth proportional to 213,620.40, 319,993.20 and 108,498.60 is: 162,525.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,620.40 : 319,993.20 = 108,498.60 : x
  2. Step 2: Convert to fraction form
    213,620.40/319,993.20 = 108,498.60/x
  3. Step 3: Cross multiply
    213,620.40x = 319,993.20 × 108,498.60
  4. Step 4: Simplify right side
    213,620.40x = 34,718,814,209.52
  5. Step 5: Solve for x
    x = 34,718,814,209.52/213,620.40
  6. Step 6: Final answer
    x = 162,525.74

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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.