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Finding the Fourth Proportional to 133,234.80, 199,852.20 and 80,746.80

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Solution

The fourth proportional to 133,234.80, 199,852.20 and 80,746.80 is: 121,120.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,234.80 : 199,852.20 = 80,746.80 : x
  2. Step 2: Convert to fraction form
    133,234.80/199,852.20 = 80,746.80/x
  3. Step 3: Cross multiply
    133,234.80x = 199,852.20 × 80,746.80
  4. Step 4: Simplify right side
    133,234.80x = 16,137,425,622.96
  5. Step 5: Solve for x
    x = 16,137,425,622.96/133,234.80
  6. Step 6: Final answer
    x = 121,120.20

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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.