Home / 198,425.76-273,829.60-107,782.64

Finding the Fourth Proportional to 198,425.76, 273,829.60 and 107,782.64

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Solution

The fourth proportional to 198,425.76, 273,829.60 and 107,782.64 is: 148,741.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,425.76 : 273,829.60 = 107,782.64 : x
  2. Step 2: Convert to fraction form
    198,425.76/273,829.60 = 107,782.64/x
  3. Step 3: Cross multiply
    198,425.76x = 273,829.60 × 107,782.64
  4. Step 4: Simplify right side
    198,425.76x = 29,514,077,198.14
  5. Step 5: Solve for x
    x = 29,514,077,198.14/198,425.76
  6. Step 6: Final answer
    x = 148,741.16

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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.