Home / 198,138.27-273,366.18-112,088.94

Finding the Fourth Proportional to 198,138.27, 273,366.18 and 112,088.94

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Solution

The fourth proportional to 198,138.27, 273,366.18 and 112,088.94 is: 154,646.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,138.27 : 273,366.18 = 112,088.94 : x
  2. Step 2: Convert to fraction form
    198,138.27/273,366.18 = 112,088.94/x
  3. Step 3: Cross multiply
    198,138.27x = 273,366.18 × 112,088.94
  4. Step 4: Simplify right side
    198,138.27x = 30,641,325,348.05
  5. Step 5: Solve for x
    x = 30,641,325,348.05/198,138.27
  6. Step 6: Final answer
    x = 154,646.17

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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.