Home / 146,921.80-220,415.10-47,086.60

Finding the Fourth Proportional to 146,921.80, 220,415.10 and 47,086.60

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Solution

The fourth proportional to 146,921.80, 220,415.10 and 47,086.60 is: 70,640.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,921.80 : 220,415.10 = 47,086.60 : x
  2. Step 2: Convert to fraction form
    146,921.80/220,415.10 = 47,086.60/x
  3. Step 3: Cross multiply
    146,921.80x = 220,415.10 × 47,086.60
  4. Step 4: Simplify right side
    146,921.80x = 10,378,597,647.66
  5. Step 5: Solve for x
    x = 10,378,597,647.66/146,921.80
  6. Step 6: Final answer
    x = 70,640.28

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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.