Home / 140,636.11-194,078.35-76,105.34

Finding the Fourth Proportional to 140,636.11, 194,078.35 and 76,105.34

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Solution

The fourth proportional to 140,636.11, 194,078.35 and 76,105.34 is: 105,025.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,636.11 : 194,078.35 = 76,105.34 : x
  2. Step 2: Convert to fraction form
    140,636.11/194,078.35 = 76,105.34/x
  3. Step 3: Cross multiply
    140,636.11x = 194,078.35 × 76,105.34
  4. Step 4: Simplify right side
    140,636.11x = 14,770,398,813.39
  5. Step 5: Solve for x
    x = 14,770,398,813.39/140,636.11
  6. Step 6: Final answer
    x = 105,025.65

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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.