Home / 105,879.18-146,113.51-58,135.60

Finding the Fourth Proportional to 105,879.18, 146,113.51 and 58,135.60

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Solution

The fourth proportional to 105,879.18, 146,113.51 and 58,135.60 is: 80,227.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,879.18 : 146,113.51 = 58,135.60 : x
  2. Step 2: Convert to fraction form
    105,879.18/146,113.51 = 58,135.60/x
  3. Step 3: Cross multiply
    105,879.18x = 146,113.51 × 58,135.60
  4. Step 4: Simplify right side
    105,879.18x = 8,494,396,470.83
  5. Step 5: Solve for x
    x = 8,494,396,470.83/105,879.18
  6. Step 6: Final answer
    x = 80,227.26

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1.5x scale

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.