Home / 106,428.43-146,868.49-58,680.96

Finding the Fourth Proportional to 106,428.43, 146,868.49 and 58,680.96

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Solution

The fourth proportional to 106,428.43, 146,868.49 and 58,680.96 is: 80,978.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,428.43 : 146,868.49 = 58,680.96 : x
  2. Step 2: Convert to fraction form
    106,428.43/146,868.49 = 58,680.96/x
  3. Step 3: Cross multiply
    106,428.43x = 146,868.49 × 58,680.96
  4. Step 4: Simplify right side
    106,428.43x = 8,618,383,986.95
  5. Step 5: Solve for x
    x = 8,618,383,986.95/106,428.43
  6. Step 6: Final answer
    x = 80,978.21

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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.