Home / 109,169.14-150,645.30-61,413.28

Finding the Fourth Proportional to 109,169.14, 150,645.30 and 61,413.28

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Solution

The fourth proportional to 109,169.14, 150,645.30 and 61,413.28 is: 84,745.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,169.14 : 150,645.30 = 61,413.28 : x
  2. Step 2: Convert to fraction form
    109,169.14/150,645.30 = 61,413.28/x
  3. Step 3: Cross multiply
    109,169.14x = 150,645.30 × 61,413.28
  4. Step 4: Simplify right side
    109,169.14x = 9,251,621,989.58
  5. Step 5: Solve for x
    x = 9,251,621,989.58/109,169.14
  6. Step 6: Final answer
    x = 84,745.76

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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.