Home / 197,890.80-296,836.20-79,501.20

Finding the Fourth Proportional to 197,890.80, 296,836.20 and 79,501.20

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Solution

The fourth proportional to 197,890.80, 296,836.20 and 79,501.20 is: 119,251.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,890.80 : 296,836.20 = 79,501.20 : x
  2. Step 2: Convert to fraction form
    197,890.80/296,836.20 = 79,501.20/x
  3. Step 3: Cross multiply
    197,890.80x = 296,836.20 × 79,501.20
  4. Step 4: Simplify right side
    197,890.80x = 23,598,834,103.44
  5. Step 5: Solve for x
    x = 23,598,834,103.44/197,890.80
  6. Step 6: Final answer
    x = 119,251.80

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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.