Home / 213,276.24-320,115.24-108,170.64

Finding the Fourth Proportional to 213,276.24, 320,115.24 and 108,170.64

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Solution

The fourth proportional to 213,276.24, 320,115.24 and 108,170.64 is: 162,357.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,276.24 : 320,115.24 = 108,170.64 : x
  2. Step 2: Convert to fraction form
    213,276.24/320,115.24 = 108,170.64/x
  3. Step 3: Cross multiply
    213,276.24x = 320,115.24 × 108,170.64
  4. Step 4: Simplify right side
    213,276.24x = 34,627,070,384.55
  5. Step 5: Solve for x
    x = 34,627,070,384.55/213,276.24
  6. Step 6: Final answer
    x = 162,357.84

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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.