Home / 106,942.20-147,583.68-61,616.56

Finding the Fourth Proportional to 106,942.20, 147,583.68 and 61,616.56

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Solution

The fourth proportional to 106,942.20, 147,583.68 and 61,616.56 is: 85,032.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,942.20 : 147,583.68 = 61,616.56 : x
  2. Step 2: Convert to fraction form
    106,942.20/147,583.68 = 61,616.56/x
  3. Step 3: Cross multiply
    106,942.20x = 147,583.68 × 61,616.56
  4. Step 4: Simplify right side
    106,942.20x = 9,093,598,673.74
  5. Step 5: Solve for x
    x = 9,093,598,673.74/106,942.20
  6. Step 6: Final answer
    x = 85,032.84

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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.