Home / 139,218.36-192,121.38-75,556.14

Finding the Fourth Proportional to 139,218.36, 192,121.38 and 75,556.14

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Solution

The fourth proportional to 139,218.36, 192,121.38 and 75,556.14 is: 104,267.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,218.36 : 192,121.38 = 75,556.14 : x
  2. Step 2: Convert to fraction form
    139,218.36/192,121.38 = 75,556.14/x
  3. Step 3: Cross multiply
    139,218.36x = 192,121.38 × 75,556.14
  4. Step 4: Simplify right side
    139,218.36x = 14,515,949,884.27
  5. Step 5: Solve for x
    x = 14,515,949,884.27/139,218.36
  6. Step 6: Final answer
    x = 104,267.50

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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.