Home / 185,643.31-256,188.06-100,760.41

Finding the Fourth Proportional to 185,643.31, 256,188.06 and 100,760.41

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Solution

The fourth proportional to 185,643.31, 256,188.06 and 100,760.41 is: 139,049.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,643.31 : 256,188.06 = 100,760.41 : x
  2. Step 2: Convert to fraction form
    185,643.31/256,188.06 = 100,760.41/x
  3. Step 3: Cross multiply
    185,643.31x = 256,188.06 × 100,760.41
  4. Step 4: Simplify right side
    185,643.31x = 25,813,613,962.70
  5. Step 5: Solve for x
    x = 25,813,613,962.70/185,643.31
  6. Step 6: Final answer
    x = 139,049.52

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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.