Home / 139,212.57-192,112.23-75,550.37

Finding the Fourth Proportional to 139,212.57, 192,112.23 and 75,550.37

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Solution

The fourth proportional to 139,212.57, 192,112.23 and 75,550.37 is: 104,258.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,212.57 : 192,112.23 = 75,550.37 : x
  2. Step 2: Convert to fraction form
    139,212.57/192,112.23 = 75,550.37/x
  3. Step 3: Cross multiply
    139,212.57x = 192,112.23 × 75,550.37
  4. Step 4: Simplify right side
    139,212.57x = 14,514,150,248.92
  5. Step 5: Solve for x
    x = 14,514,150,248.92/139,212.57
  6. Step 6: Final answer
    x = 104,258.90

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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.