Home / 106,431.44-146,888.68-61,123.60

Finding the Fourth Proportional to 106,431.44, 146,888.68 and 61,123.60

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Solution

The fourth proportional to 106,431.44, 146,888.68 and 61,123.60 is: 84,358.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,431.44 : 146,888.68 = 61,123.60 : x
  2. Step 2: Convert to fraction form
    106,431.44/146,888.68 = 61,123.60/x
  3. Step 3: Cross multiply
    106,431.44x = 146,888.68 × 61,123.60
  4. Step 4: Simplify right side
    106,431.44x = 8,978,364,920.85
  5. Step 5: Solve for x
    x = 8,978,364,920.85/106,431.44
  6. Step 6: Final answer
    x = 84,358.20

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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.