Home / 173,865.30-260,721.15-80,399.70

Finding the Fourth Proportional to 173,865.30, 260,721.15 and 80,399.70

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Solution

The fourth proportional to 173,865.30, 260,721.15 and 80,399.70 is: 120,564.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,865.30 : 260,721.15 = 80,399.70 : x
  2. Step 2: Convert to fraction form
    173,865.30/260,721.15 = 80,399.70/x
  3. Step 3: Cross multiply
    173,865.30x = 260,721.15 × 80,399.70
  4. Step 4: Simplify right side
    173,865.30x = 20,961,902,243.66
  5. Step 5: Solve for x
    x = 20,961,902,243.66/173,865.30
  6. Step 6: Final answer
    x = 120,564.04

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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.