Home / 106,489.28-146,961.92-61,181.76

Finding the Fourth Proportional to 106,489.28, 146,961.92 and 61,181.76

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Solution

The fourth proportional to 106,489.28, 146,961.92 and 61,181.76 is: 84,434.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,489.28 : 146,961.92 = 61,181.76 : x
  2. Step 2: Convert to fraction form
    106,489.28/146,961.92 = 61,181.76/x
  3. Step 3: Cross multiply
    106,489.28x = 146,961.92 × 61,181.76
  4. Step 4: Simplify right side
    106,489.28x = 8,991,388,918.58
  5. Step 5: Solve for x
    x = 8,991,388,918.58/106,489.28
  6. Step 6: Final answer
    x = 84,434.69

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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.