Home / 140,560.92-193,974.75-76,899.78

Finding the Fourth Proportional to 140,560.92, 193,974.75 and 76,899.78

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Solution

The fourth proportional to 140,560.92, 193,974.75 and 76,899.78 is: 106,122.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,560.92 : 193,974.75 = 76,899.78 : x
  2. Step 2: Convert to fraction form
    140,560.92/193,974.75 = 76,899.78/x
  3. Step 3: Cross multiply
    140,560.92x = 193,974.75 × 76,899.78
  4. Step 4: Simplify right side
    140,560.92x = 14,916,615,600.56
  5. Step 5: Solve for x
    x = 14,916,615,600.56/140,560.92
  6. Step 6: Final answer
    x = 106,122.07

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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.