Home / 148,943.75-205,544.32-80,961.73

Finding the Fourth Proportional to 148,943.75, 205,544.32 and 80,961.73

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Solution

The fourth proportional to 148,943.75, 205,544.32 and 80,961.73 is: 111,728.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,943.75 : 205,544.32 = 80,961.73 : x
  2. Step 2: Convert to fraction form
    148,943.75/205,544.32 = 80,961.73/x
  3. Step 3: Cross multiply
    148,943.75x = 205,544.32 × 80,961.73
  4. Step 4: Simplify right side
    148,943.75x = 16,641,223,022.61
  5. Step 5: Solve for x
    x = 16,641,223,022.61/148,943.75
  6. Step 6: Final answer
    x = 111,728.24

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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.