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Finding the Fourth Proportional to 123,183, 169,992.95 and 66,594.78

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Solution

The fourth proportional to 123,183, 169,992.95 and 66,594.78 is: 91,901.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,183 : 169,992.95 = 66,594.78 : x
  2. Step 2: Convert to fraction form
    123,183/169,992.95 = 66,594.78/x
  3. Step 3: Cross multiply
    123,183x = 169,992.95 × 66,594.78
  4. Step 4: Simplify right side
    123,183x = 11,320,642,773.83
  5. Step 5: Solve for x
    x = 11,320,642,773.83/123,183
  6. Step 6: Final answer
    x = 91,901.02

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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.