Home / 173,869.20-260,976.60-85,222.80

Finding the Fourth Proportional to 173,869.20, 260,976.60 and 85,222.80

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Solution

The fourth proportional to 173,869.20, 260,976.60 and 85,222.80 is: 127,918.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,869.20 : 260,976.60 = 85,222.80 : x
  2. Step 2: Convert to fraction form
    173,869.20/260,976.60 = 85,222.80/x
  3. Step 3: Cross multiply
    173,869.20x = 260,976.60 × 85,222.80
  4. Step 4: Simplify right side
    173,869.20x = 22,241,156,586.48
  5. Step 5: Solve for x
    x = 22,241,156,586.48/173,869.20
  6. Step 6: Final answer
    x = 127,918.90

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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.