Home / 185,778.13-256,375.12-100,895.19

Finding the Fourth Proportional to 185,778.13, 256,375.12 and 100,895.19

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Solution

The fourth proportional to 185,778.13, 256,375.12 and 100,895.19 is: 139,236.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,778.13 : 256,375.12 = 100,895.19 : x
  2. Step 2: Convert to fraction form
    185,778.13/256,375.12 = 100,895.19/x
  3. Step 3: Cross multiply
    185,778.13x = 256,375.12 × 100,895.19
  4. Step 4: Simplify right side
    185,778.13x = 25,867,015,161.80
  5. Step 5: Solve for x
    x = 25,867,015,161.80/185,778.13
  6. Step 6: Final answer
    x = 139,236.07

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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.