Home / 185,610.42-256,142.25-100,727.28

Finding the Fourth Proportional to 185,610.42, 256,142.25 and 100,727.28

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Solution

The fourth proportional to 185,610.42, 256,142.25 and 100,727.28 is: 139,003.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,610.42 : 256,142.25 = 100,727.28 : x
  2. Step 2: Convert to fraction form
    185,610.42/256,142.25 = 100,727.28/x
  3. Step 3: Cross multiply
    185,610.42x = 256,142.25 × 100,727.28
  4. Step 4: Simplify right side
    185,610.42x = 25,800,512,135.58
  5. Step 5: Solve for x
    x = 25,800,512,135.58/185,610.42
  6. Step 6: Final answer
    x = 139,003.58

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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.