Home / 148,049.40-204,296.94-80,981.40

Finding the Fourth Proportional to 148,049.40, 204,296.94 and 80,981.40

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Solution

The fourth proportional to 148,049.40, 204,296.94 and 80,981.40 is: 111,748.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,049.40 : 204,296.94 = 80,981.40 : x
  2. Step 2: Convert to fraction form
    148,049.40/204,296.94 = 80,981.40/x
  3. Step 3: Cross multiply
    148,049.40x = 204,296.94 × 80,981.40
  4. Step 4: Simplify right side
    148,049.40x = 16,544,252,216.92
  5. Step 5: Solve for x
    x = 16,544,252,216.92/148,049.40
  6. Step 6: Final answer
    x = 111,748.19

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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.