Home / 409,146.30-613,719.04-109,618.70

Finding the Fourth Proportional to 409,146.30, 613,719.04 and 109,618.70

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Solution

The fourth proportional to 409,146.30, 613,719.04 and 109,618.70 is: 164,427.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,146.30 : 613,719.04 = 109,618.70 : x
  2. Step 2: Convert to fraction form
    409,146.30/613,719.04 = 109,618.70/x
  3. Step 3: Cross multiply
    409,146.30x = 613,719.04 × 109,618.70
  4. Step 4: Simplify right side
    409,146.30x = 67,275,086,735.23
  5. Step 5: Solve for x
    x = 67,275,086,735.23/409,146.30
  6. Step 6: Final answer
    x = 164,427.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.