Home / 140,649.06-194,057.32-80,197.66

Finding the Fourth Proportional to 140,649.06, 194,057.32 and 80,197.66

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Solution

The fourth proportional to 140,649.06, 194,057.32 and 80,197.66 is: 110,650.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,649.06 : 194,057.32 = 80,197.66 : x
  2. Step 2: Convert to fraction form
    140,649.06/194,057.32 = 80,197.66/x
  3. Step 3: Cross multiply
    140,649.06x = 194,057.32 × 80,197.66
  4. Step 4: Simplify right side
    140,649.06x = 15,562,942,969.87
  5. Step 5: Solve for x
    x = 15,562,942,969.87/140,649.06
  6. Step 6: Final answer
    x = 110,650.89

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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.