Home / 148,745.97-205,268.31-80,761.66

Finding the Fourth Proportional to 148,745.97, 205,268.31 and 80,761.66

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Solution

The fourth proportional to 148,745.97, 205,268.31 and 80,761.66 is: 111,450.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,745.97 : 205,268.31 = 80,761.66 : x
  2. Step 2: Convert to fraction form
    148,745.97/205,268.31 = 80,761.66/x
  3. Step 3: Cross multiply
    148,745.97x = 205,268.31 × 80,761.66
  4. Step 4: Simplify right side
    148,745.97x = 16,577,808,947.82
  5. Step 5: Solve for x
    x = 16,577,808,947.82/148,745.97
  6. Step 6: Final answer
    x = 111,450.47

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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.