Home / 146,812.20-220,218.30-136,314.60

Finding the Fourth Proportional to 146,812.20, 220,218.30 and 136,314.60

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Solution

The fourth proportional to 146,812.20, 220,218.30 and 136,314.60 is: 204,471.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,812.20 : 220,218.30 = 136,314.60 : x
  2. Step 2: Convert to fraction form
    146,812.20/220,218.30 = 136,314.60/x
  3. Step 3: Cross multiply
    146,812.20x = 220,218.30 × 136,314.60
  4. Step 4: Simplify right side
    146,812.20x = 30,018,969,477.18
  5. Step 5: Solve for x
    x = 30,018,969,477.18/146,812.20
  6. Step 6: Final answer
    x = 204,471.90

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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.