Home / 139,335.42-192,257.91-82,760.70

Finding the Fourth Proportional to 139,335.42, 192,257.91 and 82,760.70

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Solution

The fourth proportional to 139,335.42, 192,257.91 and 82,760.70 is: 114,194.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,335.42 : 192,257.91 = 82,760.70 : x
  2. Step 2: Convert to fraction form
    139,335.42/192,257.91 = 82,760.70/x
  3. Step 3: Cross multiply
    139,335.42x = 192,257.91 × 82,760.70
  4. Step 4: Simplify right side
    139,335.42x = 15,911,399,212.14
  5. Step 5: Solve for x
    x = 15,911,399,212.14/139,335.42
  6. Step 6: Final answer
    x = 114,194.93

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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.