Home / 148,965.25-205,569.61-80,983.94

Finding the Fourth Proportional to 148,965.25, 205,569.61 and 80,983.94

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Solution

The fourth proportional to 148,965.25, 205,569.61 and 80,983.94 is: 111,756.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,965.25 : 205,569.61 = 80,983.94 : x
  2. Step 2: Convert to fraction form
    148,965.25/205,569.61 = 80,983.94/x
  3. Step 3: Cross multiply
    148,965.25x = 205,569.61 × 80,983.94
  4. Step 4: Simplify right side
    148,965.25x = 16,647,836,557.14
  5. Step 5: Solve for x
    x = 16,647,836,557.14/148,965.25
  6. Step 6: Final answer
    x = 111,756.51

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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.