Home / 146,786.10-220,179.15-91,413.30

Finding the Fourth Proportional to 146,786.10, 220,179.15 and 91,413.30

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Solution

The fourth proportional to 146,786.10, 220,179.15 and 91,413.30 is: 137,119.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,786.10 : 220,179.15 = 91,413.30 : x
  2. Step 2: Convert to fraction form
    146,786.10/220,179.15 = 91,413.30/x
  3. Step 3: Cross multiply
    146,786.10x = 220,179.15 × 91,413.30
  4. Step 4: Simplify right side
    146,786.10x = 20,127,302,692.70
  5. Step 5: Solve for x
    x = 20,127,302,692.70/146,786.10
  6. Step 6: Final answer
    x = 137,119.95

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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.