Home / 140,768.16-194,324.88-83,403.68

Finding the Fourth Proportional to 140,768.16, 194,324.88 and 83,403.68

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Solution

The fourth proportional to 140,768.16, 194,324.88 and 83,403.68 is: 115,135.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,768.16 : 194,324.88 = 83,403.68 : x
  2. Step 2: Convert to fraction form
    140,768.16/194,324.88 = 83,403.68/x
  3. Step 3: Cross multiply
    140,768.16x = 194,324.88 × 83,403.68
  4. Step 4: Simplify right side
    140,768.16x = 16,207,410,107.56
  5. Step 5: Solve for x
    x = 16,207,410,107.56/140,768.16
  6. Step 6: Final answer
    x = 115,135.48

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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.