Home / 135,620.75-203,431.14-52,514.75

Finding the Fourth Proportional to 135,620.75, 203,431.14 and 52,514.75

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Solution

The fourth proportional to 135,620.75, 203,431.14 and 52,514.75 is: 78,772.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,620.75 : 203,431.14 = 52,514.75 : x
  2. Step 2: Convert to fraction form
    135,620.75/203,431.14 = 52,514.75/x
  3. Step 3: Cross multiply
    135,620.75x = 203,431.14 × 52,514.75
  4. Step 4: Simplify right side
    135,620.75x = 10,683,135,459.32
  5. Step 5: Solve for x
    x = 10,683,135,459.32/135,620.75
  6. Step 6: Final answer
    x = 78,772.13

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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.