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Finding the Fourth Proportional to 185,871.44, 256,504.92 and 100,989.92

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Solution

The fourth proportional to 185,871.44, 256,504.92 and 100,989.92 is: 139,367.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,871.44 : 256,504.92 = 100,989.92 : x
  2. Step 2: Convert to fraction form
    185,871.44/256,504.92 = 100,989.92/x
  3. Step 3: Cross multiply
    185,871.44x = 256,504.92 × 100,989.92
  4. Step 4: Simplify right side
    185,871.44x = 25,904,411,350.41
  5. Step 5: Solve for x
    x = 25,904,411,350.41/185,871.44
  6. Step 6: Final answer
    x = 139,367.36

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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.