Home / 146,793.87-220,106.36-78,321.33

Finding the Fourth Proportional to 146,793.87, 220,106.36 and 78,321.33

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Solution

The fourth proportional to 146,793.87, 220,106.36 and 78,321.33 is: 117,436.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,793.87 : 220,106.36 = 78,321.33 : x
  2. Step 2: Convert to fraction form
    146,793.87/220,106.36 = 78,321.33/x
  3. Step 3: Cross multiply
    146,793.87x = 220,106.36 × 78,321.33
  4. Step 4: Simplify right side
    146,793.87x = 17,239,023,052.46
  5. Step 5: Solve for x
    x = 17,239,023,052.46/146,793.87
  6. Step 6: Final answer
    x = 117,436.94

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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.