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Finding the Fourth Proportional to 181,393.40, 272,092.85 and 69,079.83

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Solution

The fourth proportional to 181,393.40, 272,092.85 and 69,079.83 is: 103,620.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,393.40 : 272,092.85 = 69,079.83 : x
  2. Step 2: Convert to fraction form
    181,393.40/272,092.85 = 69,079.83/x
  3. Step 3: Cross multiply
    181,393.40x = 272,092.85 × 69,079.83
  4. Step 4: Simplify right side
    181,393.40x = 18,796,127,476.82
  5. Step 5: Solve for x
    x = 18,796,127,476.82/181,393.40
  6. Step 6: Final answer
    x = 103,620.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.