Home / 154,993.12-213,763.62-109,204.54

Finding the Fourth Proportional to 154,993.12, 213,763.62 and 109,204.54

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Solution

The fourth proportional to 154,993.12, 213,763.62 and 109,204.54 is: 150,612.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,993.12 : 213,763.62 = 109,204.54 : x
  2. Step 2: Convert to fraction form
    154,993.12/213,763.62 = 109,204.54/x
  3. Step 3: Cross multiply
    154,993.12x = 213,763.62 × 109,204.54
  4. Step 4: Simplify right side
    154,993.12x = 23,343,957,790.83
  5. Step 5: Solve for x
    x = 23,343,957,790.83/154,993.12
  6. Step 6: Final answer
    x = 150,612.86

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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.