Home / 72,143.36-108,226.66-22,223.44

Finding the Fourth Proportional to 72,143.36, 108,226.66 and 22,223.44

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Solution

The fourth proportional to 72,143.36, 108,226.66 and 22,223.44 is: 33,338.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,143.36 : 108,226.66 = 22,223.44 : x
  2. Step 2: Convert to fraction form
    72,143.36/108,226.66 = 22,223.44/x
  3. Step 3: Cross multiply
    72,143.36x = 108,226.66 × 22,223.44
  4. Step 4: Simplify right side
    72,143.36x = 2,405,168,684.91
  5. Step 5: Solve for x
    x = 2,405,168,684.91/72,143.36
  6. Step 6: Final answer
    x = 33,338.74

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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.