Home / 106,515.28-146,958.60-61,794.64

Finding the Fourth Proportional to 106,515.28, 146,958.60 and 61,794.64

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Solution

The fourth proportional to 106,515.28, 146,958.60 and 61,794.64 is: 85,257.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,515.28 : 146,958.60 = 61,794.64 : x
  2. Step 2: Convert to fraction form
    106,515.28/146,958.60 = 61,794.64/x
  3. Step 3: Cross multiply
    106,515.28x = 146,958.60 × 61,794.64
  4. Step 4: Simplify right side
    106,515.28x = 9,081,253,781.90
  5. Step 5: Solve for x
    x = 9,081,253,781.90/106,515.28
  6. Step 6: Final answer
    x = 85,257.76

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1.5x scale

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.