Home / 139,257.99-192,179.07-84,812.73

Finding the Fourth Proportional to 139,257.99, 192,179.07 and 84,812.73

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Solution

The fourth proportional to 139,257.99, 192,179.07 and 84,812.73 is: 117,043.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,257.99 : 192,179.07 = 84,812.73 : x
  2. Step 2: Convert to fraction form
    139,257.99/192,179.07 = 84,812.73/x
  3. Step 3: Cross multiply
    139,257.99x = 192,179.07 × 84,812.73
  4. Step 4: Simplify right side
    139,257.99x = 16,299,231,575.56
  5. Step 5: Solve for x
    x = 16,299,231,575.56/139,257.99
  6. Step 6: Final answer
    x = 117,043.42

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1.5x scale

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.