Home / 139,198.12-192,088.74-82,576.36

Finding the Fourth Proportional to 139,198.12, 192,088.74 and 82,576.36

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Solution

The fourth proportional to 139,198.12, 192,088.74 and 82,576.36 is: 113,952.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,198.12 : 192,088.74 = 82,576.36 : x
  2. Step 2: Convert to fraction form
    139,198.12/192,088.74 = 82,576.36/x
  3. Step 3: Cross multiply
    139,198.12x = 192,088.74 × 82,576.36
  4. Step 4: Simplify right side
    139,198.12x = 15,861,988,946.19
  5. Step 5: Solve for x
    x = 15,861,988,946.19/139,198.12
  6. Step 6: Final answer
    x = 113,952.61

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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.