Home / 198,124.89-273,412.34-113,243.78

Finding the Fourth Proportional to 198,124.89, 273,412.34 and 113,243.78

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Solution

The fourth proportional to 198,124.89, 273,412.34 and 113,243.78 is: 156,276.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,124.89 : 273,412.34 = 113,243.78 : x
  2. Step 2: Convert to fraction form
    198,124.89/273,412.34 = 113,243.78/x
  3. Step 3: Cross multiply
    198,124.89x = 273,412.34 × 113,243.78
  4. Step 4: Simplify right side
    198,124.89x = 30,962,245,796.29
  5. Step 5: Solve for x
    x = 30,962,245,796.29/198,124.89
  6. Step 6: Final answer
    x = 156,276.41

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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.