Home / 101,608.21-140,217.49-56,286.05

Finding the Fourth Proportional to 101,608.21, 140,217.49 and 56,286.05

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Solution

The fourth proportional to 101,608.21, 140,217.49 and 56,286.05 is: 77,673.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,608.21 : 140,217.49 = 56,286.05 : x
  2. Step 2: Convert to fraction form
    101,608.21/140,217.49 = 56,286.05/x
  3. Step 3: Cross multiply
    101,608.21x = 140,217.49 × 56,286.05
  4. Step 4: Simplify right side
    101,608.21x = 7,892,288,389.80
  5. Step 5: Solve for x
    x = 7,892,288,389.80/101,608.21
  6. Step 6: Final answer
    x = 77,673.73

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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.