Home / 203,578.18-305,362.68-70,450.42

Finding the Fourth Proportional to 203,578.18, 305,362.68 and 70,450.42

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Solution

The fourth proportional to 203,578.18, 305,362.68 and 70,450.42 is: 105,674.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,578.18 : 305,362.68 = 70,450.42 : x
  2. Step 2: Convert to fraction form
    203,578.18/305,362.68 = 70,450.42/x
  3. Step 3: Cross multiply
    203,578.18x = 305,362.68 × 70,450.42
  4. Step 4: Simplify right side
    203,578.18x = 21,512,929,058.33
  5. Step 5: Solve for x
    x = 21,512,929,058.33/203,578.18
  6. Step 6: Final answer
    x = 105,674.04

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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.