Home / 122,568.40-183,658.20-80,966.80

Finding the Fourth Proportional to 122,568.40, 183,658.20 and 80,966.80

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Solution

The fourth proportional to 122,568.40, 183,658.20 and 80,966.80 is: 121,321.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,568.40 : 183,658.20 = 80,966.80 : x
  2. Step 2: Convert to fraction form
    122,568.40/183,658.20 = 80,966.80/x
  3. Step 3: Cross multiply
    122,568.40x = 183,658.20 × 80,966.80
  4. Step 4: Simplify right side
    122,568.40x = 14,870,216,747.76
  5. Step 5: Solve for x
    x = 14,870,216,747.76/122,568.40
  6. Step 6: Final answer
    x = 121,321.78

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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.