Home / 131,834.76-197,821.86-71,906.50

Finding the Fourth Proportional to 131,834.76, 197,821.86 and 71,906.50

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Solution

The fourth proportional to 131,834.76, 197,821.86 and 71,906.50 is: 107,897.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,834.76 : 197,821.86 = 71,906.50 : x
  2. Step 2: Convert to fraction form
    131,834.76/197,821.86 = 71,906.50/x
  3. Step 3: Cross multiply
    131,834.76x = 197,821.86 × 71,906.50
  4. Step 4: Simplify right side
    131,834.76x = 14,224,677,576.09
  5. Step 5: Solve for x
    x = 14,224,677,576.09/131,834.76
  6. Step 6: Final answer
    x = 107,897.78

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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.