Home / 198,213.64-273,535-107,569.62

Finding the Fourth Proportional to 198,213.64, 273,535 and 107,569.62

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Solution

The fourth proportional to 198,213.64, 273,535 and 107,569.62 is: 148,446.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,213.64 : 273,535 = 107,569.62 : x
  2. Step 2: Convert to fraction form
    198,213.64/273,535 = 107,569.62/x
  3. Step 3: Cross multiply
    198,213.64x = 273,535 × 107,569.62
  4. Step 4: Simplify right side
    198,213.64x = 29,424,056,006.70
  5. Step 5: Solve for x
    x = 29,424,056,006.70/198,213.64
  6. Step 6: Final answer
    x = 148,446.17

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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.