Home / 198,420.59-273,822.48-107,778.33

Finding the Fourth Proportional to 198,420.59, 273,822.48 and 107,778.33

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Solution

The fourth proportional to 198,420.59, 273,822.48 and 107,778.33 is: 148,735.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,420.59 : 273,822.48 = 107,778.33 : x
  2. Step 2: Convert to fraction form
    198,420.59/273,822.48 = 107,778.33/x
  3. Step 3: Cross multiply
    198,420.59x = 273,822.48 × 107,778.33
  4. Step 4: Simplify right side
    198,420.59x = 29,512,129,610.86
  5. Step 5: Solve for x
    x = 29,512,129,610.86/198,420.59
  6. Step 6: Final answer
    x = 148,735.22

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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.