Home / 198,193.62-273,592.53-121,725.12

Finding the Fourth Proportional to 198,193.62, 273,592.53 and 121,725.12

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Solution

The fourth proportional to 198,193.62, 273,592.53 and 121,725.12 is: 168,033.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,193.62 : 273,592.53 = 121,725.12 : x
  2. Step 2: Convert to fraction form
    198,193.62/273,592.53 = 121,725.12/x
  3. Step 3: Cross multiply
    198,193.62x = 273,592.53 × 121,725.12
  4. Step 4: Simplify right side
    198,193.62x = 33,303,083,545.35
  5. Step 5: Solve for x
    x = 33,303,083,545.35/198,193.62
  6. Step 6: Final answer
    x = 168,033.08

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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.