Home / 135,324.64-203,110.08-72,198.28

Finding the Fourth Proportional to 135,324.64, 203,110.08 and 72,198.28

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Solution

The fourth proportional to 135,324.64, 203,110.08 and 72,198.28 is: 108,363.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,324.64 : 203,110.08 = 72,198.28 : x
  2. Step 2: Convert to fraction form
    135,324.64/203,110.08 = 72,198.28/x
  3. Step 3: Cross multiply
    135,324.64x = 203,110.08 × 72,198.28
  4. Step 4: Simplify right side
    135,324.64x = 14,664,198,426.66
  5. Step 5: Solve for x
    x = 14,664,198,426.66/135,324.64
  6. Step 6: Final answer
    x = 108,363.11

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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.