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Finding the Fourth Proportional to 186,468.26, 279,729.96 and 68,111.92

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Solution

The fourth proportional to 186,468.26, 279,729.96 and 68,111.92 is: 102,177.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,468.26 : 279,729.96 = 68,111.92 : x
  2. Step 2: Convert to fraction form
    186,468.26/279,729.96 = 68,111.92/x
  3. Step 3: Cross multiply
    186,468.26x = 279,729.96 × 68,111.92
  4. Step 4: Simplify right side
    186,468.26x = 19,052,944,657.12
  5. Step 5: Solve for x
    x = 19,052,944,657.12/186,468.26
  6. Step 6: Final answer
    x = 102,177.95

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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.