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Finding the Fourth Proportional to 146,786.40, 220,179.60 and 115,293.60

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Solution

The fourth proportional to 146,786.40, 220,179.60 and 115,293.60 is: 172,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,786.40 : 220,179.60 = 115,293.60 : x
  2. Step 2: Convert to fraction form
    146,786.40/220,179.60 = 115,293.60/x
  3. Step 3: Cross multiply
    146,786.40x = 220,179.60 × 115,293.60
  4. Step 4: Simplify right side
    146,786.40x = 25,385,298,730.56
  5. Step 5: Solve for x
    x = 25,385,298,730.56/146,786.40
  6. Step 6: Final answer
    x = 172,940.40

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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.