Home / 106,429.44-146,885.92-61,121.60

Finding the Fourth Proportional to 106,429.44, 146,885.92 and 61,121.60

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Solution

The fourth proportional to 106,429.44, 146,885.92 and 61,121.60 is: 84,355.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,429.44 : 146,885.92 = 61,121.60 : x
  2. Step 2: Convert to fraction form
    106,429.44/146,885.92 = 61,121.60/x
  3. Step 3: Cross multiply
    106,429.44x = 146,885.92 × 61,121.60
  4. Step 4: Simplify right side
    106,429.44x = 8,977,902,447.87
  5. Step 5: Solve for x
    x = 8,977,902,447.87/106,429.44
  6. Step 6: Final answer
    x = 84,355.44

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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.