Home / 139,378.27-192,340.95-75,716.52

Finding the Fourth Proportional to 139,378.27, 192,340.95 and 75,716.52

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Solution

The fourth proportional to 139,378.27, 192,340.95 and 75,716.52 is: 104,488.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,378.27 : 192,340.95 = 75,716.52 : x
  2. Step 2: Convert to fraction form
    139,378.27/192,340.95 = 75,716.52/x
  3. Step 3: Cross multiply
    139,378.27x = 192,340.95 × 75,716.52
  4. Step 4: Simplify right side
    139,378.27x = 14,563,388,103.05
  5. Step 5: Solve for x
    x = 14,563,388,103.05/139,378.27
  6. Step 6: Final answer
    x = 104,488.23

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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.