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Finding the Fourth Proportional to 181,194.71, 250,049.43 and 100,621.98

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Solution

The fourth proportional to 181,194.71, 250,049.43 and 100,621.98 is: 138,858.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,194.71 : 250,049.43 = 100,621.98 : x
  2. Step 2: Convert to fraction form
    181,194.71/250,049.43 = 100,621.98/x
  3. Step 3: Cross multiply
    181,194.71x = 250,049.43 × 100,621.98
  4. Step 4: Simplify right side
    181,194.71x = 25,160,468,744.47
  5. Step 5: Solve for x
    x = 25,160,468,744.47/181,194.71
  6. Step 6: Final answer
    x = 138,858.74

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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.