Home / 203,946.20-305,919.30-133,087.40

Finding the Fourth Proportional to 203,946.20, 305,919.30 and 133,087.40

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Solution

The fourth proportional to 203,946.20, 305,919.30 and 133,087.40 is: 199,631.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,946.20 : 305,919.30 = 133,087.40 : x
  2. Step 2: Convert to fraction form
    203,946.20/305,919.30 = 133,087.40/x
  3. Step 3: Cross multiply
    203,946.20x = 305,919.30 × 133,087.40
  4. Step 4: Simplify right side
    203,946.20x = 40,714,004,246.82
  5. Step 5: Solve for x
    x = 40,714,004,246.82/203,946.20
  6. Step 6: Final answer
    x = 199,631.10

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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.