Home / 136,099.20-203,930.10-100,669.80

Finding the Fourth Proportional to 136,099.20, 203,930.10 and 100,669.80

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Solution

The fourth proportional to 136,099.20, 203,930.10 and 100,669.80 is: 150,842.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,099.20 : 203,930.10 = 100,669.80 : x
  2. Step 2: Convert to fraction form
    136,099.20/203,930.10 = 100,669.80/x
  3. Step 3: Cross multiply
    136,099.20x = 203,930.10 × 100,669.80
  4. Step 4: Simplify right side
    136,099.20x = 20,529,602,380.98
  5. Step 5: Solve for x
    x = 20,529,602,380.98/136,099.20
  6. Step 6: Final answer
    x = 150,842.93

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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.