Home / 139,450.75-192,443.34-82,851.19

Finding the Fourth Proportional to 139,450.75, 192,443.34 and 82,851.19

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Solution

The fourth proportional to 139,450.75, 192,443.34 and 82,851.19 is: 114,335.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,450.75 : 192,443.34 = 82,851.19 : x
  2. Step 2: Convert to fraction form
    139,450.75/192,443.34 = 82,851.19/x
  3. Step 3: Cross multiply
    139,450.75x = 192,443.34 × 82,851.19
  4. Step 4: Simplify right side
    139,450.75x = 15,944,159,556.16
  5. Step 5: Solve for x
    x = 15,944,159,556.16/139,450.75
  6. Step 6: Final answer
    x = 114,335.42

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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.