Home / 139,392.07-192,364.82-75,734.17

Finding the Fourth Proportional to 139,392.07, 192,364.82 and 75,734.17

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Solution

The fourth proportional to 139,392.07, 192,364.82 and 75,734.17 is: 104,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,392.07 : 192,364.82 = 75,734.17 : x
  2. Step 2: Convert to fraction form
    139,392.07/192,364.82 = 75,734.17/x
  3. Step 3: Cross multiply
    139,392.07x = 192,364.82 × 75,734.17
  4. Step 4: Simplify right side
    139,392.07x = 14,568,589,979.90
  5. Step 5: Solve for x
    x = 14,568,589,979.90/139,392.07
  6. Step 6: Final answer
    x = 104,515.20

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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.