Home / 203,944.20-305,916.30-133,085.40

Finding the Fourth Proportional to 203,944.20, 305,916.30 and 133,085.40

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Solution

The fourth proportional to 203,944.20, 305,916.30 and 133,085.40 is: 199,628.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,944.20 : 305,916.30 = 133,085.40 : x
  2. Step 2: Convert to fraction form
    203,944.20/305,916.30 = 133,085.40/x
  3. Step 3: Cross multiply
    203,944.20x = 305,916.30 × 133,085.40
  4. Step 4: Simplify right side
    203,944.20x = 40,712,993,152.02
  5. Step 5: Solve for x
    x = 40,712,993,152.02/203,944.20
  6. Step 6: Final answer
    x = 199,628.10

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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.