Home / 149,431.12-206,198.40-88,993.36

Finding the Fourth Proportional to 149,431.12, 206,198.40 and 88,993.36

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Solution

The fourth proportional to 149,431.12, 206,198.40 and 88,993.36 is: 122,800.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,431.12 : 206,198.40 = 88,993.36 : x
  2. Step 2: Convert to fraction form
    149,431.12/206,198.40 = 88,993.36/x
  3. Step 3: Cross multiply
    149,431.12x = 206,198.40 × 88,993.36
  4. Step 4: Simplify right side
    149,431.12x = 18,350,288,442.62
  5. Step 5: Solve for x
    x = 18,350,288,442.62/149,431.12
  6. Step 6: Final answer
    x = 122,800.98

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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.