Home / 203,111.15-304,704.18-68,161.91

Finding the Fourth Proportional to 203,111.15, 304,704.18 and 68,161.91

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Solution

The fourth proportional to 203,111.15, 304,704.18 and 68,161.91 is: 102,255.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,111.15 : 304,704.18 = 68,161.91 : x
  2. Step 2: Convert to fraction form
    203,111.15/304,704.18 = 68,161.91/x
  3. Step 3: Cross multiply
    203,111.15x = 304,704.18 × 68,161.91
  4. Step 4: Simplify right side
    203,111.15x = 20,769,217,370.26
  5. Step 5: Solve for x
    x = 20,769,217,370.26/203,111.15
  6. Step 6: Final answer
    x = 102,255.43

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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.