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Finding the Fourth Proportional to 133,234.22, 183,863.70 and 72,804.86

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Solution

The fourth proportional to 133,234.22, 183,863.70 and 72,804.86 is: 100,470.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,234.22 : 183,863.70 = 72,804.86 : x
  2. Step 2: Convert to fraction form
    133,234.22/183,863.70 = 72,804.86/x
  3. Step 3: Cross multiply
    133,234.22x = 183,863.70 × 72,804.86
  4. Step 4: Simplify right side
    133,234.22x = 13,386,170,755.57
  5. Step 5: Solve for x
    x = 13,386,170,755.57/133,234.22
  6. Step 6: Final answer
    x = 100,470.97

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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.