Home / 408,035.75-612,052.40-108,516.07

Finding the Fourth Proportional to 408,035.75, 612,052.40 and 108,516.07

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Solution

The fourth proportional to 408,035.75, 612,052.40 and 108,516.07 is: 162,773.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,035.75 : 612,052.40 = 108,516.07 : x
  2. Step 2: Convert to fraction form
    408,035.75/612,052.40 = 108,516.07/x
  3. Step 3: Cross multiply
    408,035.75x = 612,052.40 × 108,516.07
  4. Step 4: Simplify right side
    408,035.75x = 66,417,522,118.42
  5. Step 5: Solve for x
    x = 66,417,522,118.42/408,035.75
  6. Step 6: Final answer
    x = 162,773.78

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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.