Home / 154,635.90-231,990.30-49,455.78

Finding the Fourth Proportional to 154,635.90, 231,990.30 and 49,455.78

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Solution

The fourth proportional to 154,635.90, 231,990.30 and 49,455.78 is: 74,195.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,635.90 : 231,990.30 = 49,455.78 : x
  2. Step 2: Convert to fraction form
    154,635.90/231,990.30 = 49,455.78/x
  3. Step 3: Cross multiply
    154,635.90x = 231,990.30 × 49,455.78
  4. Step 4: Simplify right side
    154,635.90x = 11,473,261,238.93
  5. Step 5: Solve for x
    x = 11,473,261,238.93/154,635.90
  6. Step 6: Final answer
    x = 74,195.33

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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.