Home / 221,151.50-331,727.16-71,413.82

Finding the Fourth Proportional to 221,151.50, 331,727.16 and 71,413.82

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Solution

The fourth proportional to 221,151.50, 331,727.16 and 71,413.82 is: 107,120.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,151.50 : 331,727.16 = 71,413.82 : x
  2. Step 2: Convert to fraction form
    221,151.50/331,727.16 = 71,413.82/x
  3. Step 3: Cross multiply
    221,151.50x = 331,727.16 × 71,413.82
  4. Step 4: Simplify right side
    221,151.50x = 23,689,903,693.35
  5. Step 5: Solve for x
    x = 23,689,903,693.35/221,151.50
  6. Step 6: Final answer
    x = 107,120.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.