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Finding the Fourth Proportional to 181,249.02, 250,116.66 and 100,681.70

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Solution

The fourth proportional to 181,249.02, 250,116.66 and 100,681.70 is: 138,936.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,249.02 : 250,116.66 = 100,681.70 : x
  2. Step 2: Convert to fraction form
    181,249.02/250,116.66 = 100,681.70/x
  3. Step 3: Cross multiply
    181,249.02x = 250,116.66 × 100,681.70
  4. Step 4: Simplify right side
    181,249.02x = 25,182,169,276.54
  5. Step 5: Solve for x
    x = 25,182,169,276.54/181,249.02
  6. Step 6: Final answer
    x = 138,936.86

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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.