Home / 131,836.80-197,755.20-117,321.60

Finding the Fourth Proportional to 131,836.80, 197,755.20 and 117,321.60

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Solution

The fourth proportional to 131,836.80, 197,755.20 and 117,321.60 is: 175,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,836.80 : 197,755.20 = 117,321.60 : x
  2. Step 2: Convert to fraction form
    131,836.80/197,755.20 = 117,321.60/x
  3. Step 3: Cross multiply
    131,836.80x = 197,755.20 × 117,321.60
  4. Step 4: Simplify right side
    131,836.80x = 23,200,956,472.32
  5. Step 5: Solve for x
    x = 23,200,956,472.32/131,836.80
  6. Step 6: Final answer
    x = 175,982.40

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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.