Home / 148,101.75-204,380.55-81,033.75

Finding the Fourth Proportional to 148,101.75, 204,380.55 and 81,033.75

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Solution

The fourth proportional to 148,101.75, 204,380.55 and 81,033.75 is: 111,826.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,101.75 : 204,380.55 = 81,033.75 : x
  2. Step 2: Convert to fraction form
    148,101.75/204,380.55 = 81,033.75/x
  3. Step 3: Cross multiply
    148,101.75x = 204,380.55 × 81,033.75
  4. Step 4: Simplify right side
    148,101.75x = 16,561,722,393.56
  5. Step 5: Solve for x
    x = 16,561,722,393.56/148,101.75
  6. Step 6: Final answer
    x = 111,826.65

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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.