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Finding the Fourth Proportional to 148,008.87, 204,249.18 and 80,940.87

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Solution

The fourth proportional to 148,008.87, 204,249.18 and 80,940.87 is: 111,696.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,008.87 : 204,249.18 = 80,940.87 : x
  2. Step 2: Convert to fraction form
    148,008.87/204,249.18 = 80,940.87/x
  3. Step 3: Cross multiply
    148,008.87x = 204,249.18 × 80,940.87
  4. Step 4: Simplify right side
    148,008.87x = 16,532,106,325.99
  5. Step 5: Solve for x
    x = 16,532,106,325.99/148,008.87
  6. Step 6: Final answer
    x = 111,696.73

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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.