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Finding the Fourth Proportional to 72,194.94, 108,279.99 and 19,608.66

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Solution

The fourth proportional to 72,194.94, 108,279.99 and 19,608.66 is: 29,409.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,194.94 : 108,279.99 = 19,608.66 : x
  2. Step 2: Convert to fraction form
    72,194.94/108,279.99 = 19,608.66/x
  3. Step 3: Cross multiply
    72,194.94x = 108,279.99 × 19,608.66
  4. Step 4: Simplify right side
    72,194.94x = 2,123,225,508.71
  5. Step 5: Solve for x
    x = 2,123,225,508.71/72,194.94
  6. Step 6: Final answer
    x = 29,409.62

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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.