Home / 229,971.11-345,014.06-80,213.54

Finding the Fourth Proportional to 229,971.11, 345,014.06 and 80,213.54

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Solution

The fourth proportional to 229,971.11, 345,014.06 and 80,213.54 is: 120,340.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,971.11 : 345,014.06 = 80,213.54 : x
  2. Step 2: Convert to fraction form
    229,971.11/345,014.06 = 80,213.54/x
  3. Step 3: Cross multiply
    229,971.11x = 345,014.06 × 80,213.54
  4. Step 4: Simplify right side
    229,971.11x = 27,674,796,976.23
  5. Step 5: Solve for x
    x = 27,674,796,976.23/229,971.11
  6. Step 6: Final answer
    x = 120,340.32

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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.