Home / 203,942.01-306,099.78-104,172.15

Finding the Fourth Proportional to 203,942.01, 306,099.78 and 104,172.15

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Solution

The fourth proportional to 203,942.01, 306,099.78 and 104,172.15 is: 156,353.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,942.01 : 306,099.78 = 104,172.15 : x
  2. Step 2: Convert to fraction form
    203,942.01/306,099.78 = 104,172.15/x
  3. Step 3: Cross multiply
    203,942.01x = 306,099.78 × 104,172.15
  4. Step 4: Simplify right side
    203,942.01x = 31,887,072,197.13
  5. Step 5: Solve for x
    x = 31,887,072,197.13/203,942.01
  6. Step 6: Final answer
    x = 156,353.62

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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.