Home / 198,063.12-273,325.86-107,421.24

Finding the Fourth Proportional to 198,063.12, 273,325.86 and 107,421.24

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Solution

The fourth proportional to 198,063.12, 273,325.86 and 107,421.24 is: 148,240.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,063.12 : 273,325.86 = 107,421.24 : x
  2. Step 2: Convert to fraction form
    198,063.12/273,325.86 = 107,421.24/x
  3. Step 3: Cross multiply
    198,063.12x = 273,325.86 × 107,421.24
  4. Step 4: Simplify right side
    198,063.12x = 29,361,002,805.27
  5. Step 5: Solve for x
    x = 29,361,002,805.27/198,063.12
  6. Step 6: Final answer
    x = 148,240.64

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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.