Home / 327,836.52-491,393.88-128,119.68

Finding the Fourth Proportional to 327,836.52, 491,393.88 and 128,119.68

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Solution

The fourth proportional to 327,836.52, 491,393.88 and 128,119.68 is: 192,038.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,836.52 : 491,393.88 = 128,119.68 : x
  2. Step 2: Convert to fraction form
    327,836.52/491,393.88 = 128,119.68/x
  3. Step 3: Cross multiply
    327,836.52x = 491,393.88 × 128,119.68
  4. Step 4: Simplify right side
    327,836.52x = 62,957,226,659.56
  5. Step 5: Solve for x
    x = 62,957,226,659.56/327,836.52
  6. Step 6: Final answer
    x = 192,038.48

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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.