Home / 168,413.92-232,309.20-100,385.56

Finding the Fourth Proportional to 168,413.92, 232,309.20 and 100,385.56

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Solution

The fourth proportional to 168,413.92, 232,309.20 and 100,385.56 is: 138,471.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,413.92 : 232,309.20 = 100,385.56 : x
  2. Step 2: Convert to fraction form
    168,413.92/232,309.20 = 100,385.56/x
  3. Step 3: Cross multiply
    168,413.92x = 232,309.20 × 100,385.56
  4. Step 4: Simplify right side
    168,413.92x = 23,320,489,135.15
  5. Step 5: Solve for x
    x = 23,320,489,135.15/168,413.92
  6. Step 6: Final answer
    x = 138,471.27

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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.