Home / 198,188.37-273,548.54-121,725.79

Finding the Fourth Proportional to 198,188.37, 273,548.54 and 121,725.79

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Solution

The fourth proportional to 198,188.37, 273,548.54 and 121,725.79 is: 168,011.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,188.37 : 273,548.54 = 121,725.79 : x
  2. Step 2: Convert to fraction form
    198,188.37/273,548.54 = 121,725.79/x
  3. Step 3: Cross multiply
    198,188.37x = 273,548.54 × 121,725.79
  4. Step 4: Simplify right side
    198,188.37x = 33,297,911,755.29
  5. Step 5: Solve for x
    x = 33,297,911,755.29/198,188.37
  6. Step 6: Final answer
    x = 168,011.43

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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.