Home / 129,239.66-193,822.05-50,336.30

Finding the Fourth Proportional to 129,239.66, 193,822.05 and 50,336.30

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Solution

The fourth proportional to 129,239.66, 193,822.05 and 50,336.30 is: 75,489.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,239.66 : 193,822.05 = 50,336.30 : x
  2. Step 2: Convert to fraction form
    129,239.66/193,822.05 = 50,336.30/x
  3. Step 3: Cross multiply
    129,239.66x = 193,822.05 × 50,336.30
  4. Step 4: Simplify right side
    129,239.66x = 9,756,284,855.42
  5. Step 5: Solve for x
    x = 9,756,284,855.42/129,239.66
  6. Step 6: Final answer
    x = 75,489.87

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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.