Home / 105,879.36-146,113.77-58,135.80

Finding the Fourth Proportional to 105,879.36, 146,113.77 and 58,135.80

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Solution

The fourth proportional to 105,879.36, 146,113.77 and 58,135.80 is: 80,227.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,879.36 : 146,113.77 = 58,135.80 : x
  2. Step 2: Convert to fraction form
    105,879.36/146,113.77 = 58,135.80/x
  3. Step 3: Cross multiply
    105,879.36x = 146,113.77 × 58,135.80
  4. Step 4: Simplify right side
    105,879.36x = 8,494,440,909.97
  5. Step 5: Solve for x
    x = 8,494,440,909.97/105,879.36
  6. Step 6: Final answer
    x = 80,227.54

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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.