Home / 148,360.11-204,736.66-80,378.78

Finding the Fourth Proportional to 148,360.11, 204,736.66 and 80,378.78

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Solution

The fourth proportional to 148,360.11, 204,736.66 and 80,378.78 is: 110,922.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,360.11 : 204,736.66 = 80,378.78 : x
  2. Step 2: Convert to fraction form
    148,360.11/204,736.66 = 80,378.78/x
  3. Step 3: Cross multiply
    148,360.11x = 204,736.66 × 80,378.78
  4. Step 4: Simplify right side
    148,360.11x = 16,456,482,952.07
  5. Step 5: Solve for x
    x = 16,456,482,952.07/148,360.11
  6. Step 6: Final answer
    x = 110,922.56

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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.