Home / 139,197.12-192,087.36-82,575.36

Finding the Fourth Proportional to 139,197.12, 192,087.36 and 82,575.36

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Solution

The fourth proportional to 139,197.12, 192,087.36 and 82,575.36 is: 113,951.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,197.12 : 192,087.36 = 82,575.36 : x
  2. Step 2: Convert to fraction form
    139,197.12/192,087.36 = 82,575.36/x
  3. Step 3: Cross multiply
    139,197.12x = 192,087.36 × 82,575.36
  4. Step 4: Simplify right side
    139,197.12x = 15,861,682,903.45
  5. Step 5: Solve for x
    x = 15,861,682,903.45/139,197.12
  6. Step 6: Final answer
    x = 113,951.23

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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.