Home / 105,867.45-146,092.65-58,121.90

Finding the Fourth Proportional to 105,867.45, 146,092.65 and 58,121.90

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Solution

The fourth proportional to 105,867.45, 146,092.65 and 58,121.90 is: 80,205.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,867.45 : 146,092.65 = 58,121.90 : x
  2. Step 2: Convert to fraction form
    105,867.45/146,092.65 = 58,121.90/x
  3. Step 3: Cross multiply
    105,867.45x = 146,092.65 × 58,121.90
  4. Step 4: Simplify right side
    105,867.45x = 8,491,181,663.57
  5. Step 5: Solve for x
    x = 8,491,181,663.57/105,867.45
  6. Step 6: Final answer
    x = 80,205.78

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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.