Home / 140,179.09-193,439.82-76,504.54

Finding the Fourth Proportional to 140,179.09, 193,439.82 and 76,504.54

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Solution

The fourth proportional to 140,179.09, 193,439.82 and 76,504.54 is: 105,572.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,179.09 : 193,439.82 = 76,504.54 : x
  2. Step 2: Convert to fraction form
    140,179.09/193,439.82 = 76,504.54/x
  3. Step 3: Cross multiply
    140,179.09x = 193,439.82 × 76,504.54
  4. Step 4: Simplify right side
    140,179.09x = 14,799,024,446.78
  5. Step 5: Solve for x
    x = 14,799,024,446.78/140,179.09
  6. Step 6: Final answer
    x = 105,572.27

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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.