Home / 198,443.40-273,856.83-107,799.36

Finding the Fourth Proportional to 198,443.40, 273,856.83 and 107,799.36

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Solution

The fourth proportional to 198,443.40, 273,856.83 and 107,799.36 is: 148,765.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,443.40 : 273,856.83 = 107,799.36 : x
  2. Step 2: Convert to fraction form
    198,443.40/273,856.83 = 107,799.36/x
  3. Step 3: Cross multiply
    198,443.40x = 273,856.83 × 107,799.36
  4. Step 4: Simplify right side
    198,443.40x = 29,521,591,005.63
  5. Step 5: Solve for x
    x = 29,521,591,005.63/198,443.40
  6. Step 6: Final answer
    x = 148,765.80

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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.