Home / 165,940.20-248,910.30-102,810.60

Finding the Fourth Proportional to 165,940.20, 248,910.30 and 102,810.60

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Solution

The fourth proportional to 165,940.20, 248,910.30 and 102,810.60 is: 154,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,940.20 : 248,910.30 = 102,810.60 : x
  2. Step 2: Convert to fraction form
    165,940.20/248,910.30 = 102,810.60/x
  3. Step 3: Cross multiply
    165,940.20x = 248,910.30 × 102,810.60
  4. Step 4: Simplify right side
    165,940.20x = 25,590,617,289.18
  5. Step 5: Solve for x
    x = 25,590,617,289.18/165,940.20
  6. Step 6: Final answer
    x = 154,215.90

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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.