Home / 109,121.91-163,664.64-30,244.11

Finding the Fourth Proportional to 109,121.91, 163,664.64 and 30,244.11

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Solution

The fourth proportional to 109,121.91, 163,664.64 and 30,244.11 is: 45,361.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,121.91 : 163,664.64 = 30,244.11 : x
  2. Step 2: Convert to fraction form
    109,121.91/163,664.64 = 30,244.11/x
  3. Step 3: Cross multiply
    109,121.91x = 163,664.64 × 30,244.11
  4. Step 4: Simplify right side
    109,121.91x = 4,949,891,375.27
  5. Step 5: Solve for x
    x = 4,949,891,375.27/109,121.91
  6. Step 6: Final answer
    x = 45,361.11

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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.