Home / 185,643.56-256,188.36-100,760.60

Finding the Fourth Proportional to 185,643.56, 256,188.36 and 100,760.60

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Solution

The fourth proportional to 185,643.56, 256,188.36 and 100,760.60 is: 139,049.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,643.56 : 256,188.36 = 100,760.60 : x
  2. Step 2: Convert to fraction form
    185,643.56/256,188.36 = 100,760.60/x
  3. Step 3: Cross multiply
    185,643.56x = 256,188.36 × 100,760.60
  4. Step 4: Simplify right side
    185,643.56x = 25,813,692,866.62
  5. Step 5: Solve for x
    x = 25,813,692,866.62/185,643.56
  6. Step 6: Final answer
    x = 139,049.76

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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.