Home / 194,436.20-268,321.90-105,012.20

Finding the Fourth Proportional to 194,436.20, 268,321.90 and 105,012.20

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Solution

The fourth proportional to 194,436.20, 268,321.90 and 105,012.20 is: 144,916.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,436.20 : 268,321.90 = 105,012.20 : x
  2. Step 2: Convert to fraction form
    194,436.20/268,321.90 = 105,012.20/x
  3. Step 3: Cross multiply
    194,436.20x = 268,321.90 × 105,012.20
  4. Step 4: Simplify right side
    194,436.20x = 28,177,073,027.18
  5. Step 5: Solve for x
    x = 28,177,073,027.18/194,436.20
  6. Step 6: Final answer
    x = 144,916.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.