Home / 109,413.84-150,992.46-61,665.96

Finding the Fourth Proportional to 109,413.84, 150,992.46 and 61,665.96

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Solution

The fourth proportional to 109,413.84, 150,992.46 and 61,665.96 is: 85,099.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,413.84 : 150,992.46 = 61,665.96 : x
  2. Step 2: Convert to fraction form
    109,413.84/150,992.46 = 61,665.96/x
  3. Step 3: Cross multiply
    109,413.84x = 150,992.46 × 61,665.96
  4. Step 4: Simplify right side
    109,413.84x = 9,311,094,998.66
  5. Step 5: Solve for x
    x = 9,311,094,998.66/109,413.84
  6. Step 6: Final answer
    x = 85,099.79

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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.