Home / 139,351.08-192,304.83-75,687.51

Finding the Fourth Proportional to 139,351.08, 192,304.83 and 75,687.51

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Solution

The fourth proportional to 139,351.08, 192,304.83 and 75,687.51 is: 104,448.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,351.08 : 192,304.83 = 75,687.51 : x
  2. Step 2: Convert to fraction form
    139,351.08/192,304.83 = 75,687.51/x
  3. Step 3: Cross multiply
    139,351.08x = 192,304.83 × 75,687.51
  4. Step 4: Simplify right side
    139,351.08x = 14,555,073,743.67
  5. Step 5: Solve for x
    x = 14,555,073,743.67/139,351.08
  6. Step 6: Final answer
    x = 104,448.95

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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.