Home / 109,120.41-163,662.39-30,242.61

Finding the Fourth Proportional to 109,120.41, 163,662.39 and 30,242.61

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Solution

The fourth proportional to 109,120.41, 163,662.39 and 30,242.61 is: 45,358.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,120.41 : 163,662.39 = 30,242.61 : x
  2. Step 2: Convert to fraction form
    109,120.41/163,662.39 = 30,242.61/x
  3. Step 3: Cross multiply
    109,120.41x = 163,662.39 × 30,242.61
  4. Step 4: Simplify right side
    109,120.41x = 4,949,577,832.44
  5. Step 5: Solve for x
    x = 4,949,577,832.44/109,120.41
  6. Step 6: Final answer
    x = 45,358.86

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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.