Home / 137,413.82-189,588.03-76,976.30

Finding the Fourth Proportional to 137,413.82, 189,588.03 and 76,976.30

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Solution

The fourth proportional to 137,413.82, 189,588.03 and 76,976.30 is: 106,203.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,413.82 : 189,588.03 = 76,976.30 : x
  2. Step 2: Convert to fraction form
    137,413.82/189,588.03 = 76,976.30/x
  3. Step 3: Cross multiply
    137,413.82x = 189,588.03 × 76,976.30
  4. Step 4: Simplify right side
    137,413.82x = 14,593,785,073.69
  5. Step 5: Solve for x
    x = 14,593,785,073.69/137,413.82
  6. Step 6: Final answer
    x = 106,203.18

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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.