Home / 198,463.72-273,880.28-107,818.92

Finding the Fourth Proportional to 198,463.72, 273,880.28 and 107,818.92

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Solution

The fourth proportional to 198,463.72, 273,880.28 and 107,818.92 is: 148,790.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,463.72 : 273,880.28 = 107,818.92 : x
  2. Step 2: Convert to fraction form
    198,463.72/273,880.28 = 107,818.92/x
  3. Step 3: Cross multiply
    198,463.72x = 273,880.28 × 107,818.92
  4. Step 4: Simplify right side
    198,463.72x = 29,529,475,998.90
  5. Step 5: Solve for x
    x = 29,529,475,998.90/198,463.72
  6. Step 6: Final answer
    x = 148,790.30

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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.