Home / 203,946.10-305,919.15-133,087.30

Finding the Fourth Proportional to 203,946.10, 305,919.15 and 133,087.30

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Solution

The fourth proportional to 203,946.10, 305,919.15 and 133,087.30 is: 199,630.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,946.10 : 305,919.15 = 133,087.30 : x
  2. Step 2: Convert to fraction form
    203,946.10/305,919.15 = 133,087.30/x
  3. Step 3: Cross multiply
    203,946.10x = 305,919.15 × 133,087.30
  4. Step 4: Simplify right side
    203,946.10x = 40,713,953,691.80
  5. Step 5: Solve for x
    x = 40,713,953,691.80/203,946.10
  6. Step 6: Final answer
    x = 199,630.95

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1.5x scale

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.