Home / 185,643.45-256,188.21-100,760.49

Finding the Fourth Proportional to 185,643.45, 256,188.21 and 100,760.49

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Solution

The fourth proportional to 185,643.45, 256,188.21 and 100,760.49 is: 139,049.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,643.45 : 256,188.21 = 100,760.49 : x
  2. Step 2: Convert to fraction form
    185,643.45/256,188.21 = 100,760.49/x
  3. Step 3: Cross multiply
    185,643.45x = 256,188.21 × 100,760.49
  4. Step 4: Simplify right side
    185,643.45x = 25,813,649,571.82
  5. Step 5: Solve for x
    x = 25,813,649,571.82/185,643.45
  6. Step 6: Final answer
    x = 139,049.61

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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.