Home / 218,629.62-301,709.88-123,137.91

Finding the Fourth Proportional to 218,629.62, 301,709.88 and 123,137.91

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Solution

The fourth proportional to 218,629.62, 301,709.88 and 123,137.91 is: 169,930.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,629.62 : 301,709.88 = 123,137.91 : x
  2. Step 2: Convert to fraction form
    218,629.62/301,709.88 = 123,137.91/x
  3. Step 3: Cross multiply
    218,629.62x = 301,709.88 × 123,137.91
  4. Step 4: Simplify right side
    218,629.62x = 37,151,924,049.55
  5. Step 5: Solve for x
    x = 37,151,924,049.55/218,629.62
  6. Step 6: Final answer
    x = 169,930.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.