Home / 139,249.04-192,163.80-75,586.80

Finding the Fourth Proportional to 139,249.04, 192,163.80 and 75,586.80

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Solution

The fourth proportional to 139,249.04, 192,163.80 and 75,586.80 is: 104,309.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,249.04 : 192,163.80 = 75,586.80 : x
  2. Step 2: Convert to fraction form
    139,249.04/192,163.80 = 75,586.80/x
  3. Step 3: Cross multiply
    139,249.04x = 192,163.80 × 75,586.80
  4. Step 4: Simplify right side
    139,249.04x = 14,525,046,717.84
  5. Step 5: Solve for x
    x = 14,525,046,717.84/139,249.04
  6. Step 6: Final answer
    x = 104,309.85

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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.