Home / 106,161.20-146,475.92-68,390

Finding the Fourth Proportional to 106,161.20, 146,475.92 and 68,390

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Solution

The fourth proportional to 106,161.20, 146,475.92 and 68,390 is: 94,361.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,161.20 : 146,475.92 = 68,390 : x
  2. Step 2: Convert to fraction form
    106,161.20/146,475.92 = 68,390/x
  3. Step 3: Cross multiply
    106,161.20x = 146,475.92 × 68,390
  4. Step 4: Simplify right side
    106,161.20x = 10,017,488,168.80
  5. Step 5: Solve for x
    x = 10,017,488,168.80/106,161.20
  6. Step 6: Final answer
    x = 94,361.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.