Home / 203,930.60-305,895.90-156,636.73

Finding the Fourth Proportional to 203,930.60, 305,895.90 and 156,636.73

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Solution

The fourth proportional to 203,930.60, 305,895.90 and 156,636.73 is: 234,955.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,930.60 : 305,895.90 = 156,636.73 : x
  2. Step 2: Convert to fraction form
    203,930.60/305,895.90 = 156,636.73/x
  3. Step 3: Cross multiply
    203,930.60x = 305,895.90 × 156,636.73
  4. Step 4: Simplify right side
    203,930.60x = 47,914,533,496.41
  5. Step 5: Solve for x
    x = 47,914,533,496.41/203,930.60
  6. Step 6: Final answer
    x = 234,955.10

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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.