Home / 193,420.33-290,213.06-109,243.69

Finding the Fourth Proportional to 193,420.33, 290,213.06 and 109,243.69

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Solution

The fourth proportional to 193,420.33, 290,213.06 and 109,243.69 is: 163,912.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,420.33 : 290,213.06 = 109,243.69 : x
  2. Step 2: Convert to fraction form
    193,420.33/290,213.06 = 109,243.69/x
  3. Step 3: Cross multiply
    193,420.33x = 290,213.06 × 109,243.69
  4. Step 4: Simplify right side
    193,420.33x = 31,703,945,014.37
  5. Step 5: Solve for x
    x = 31,703,945,014.37/193,420.33
  6. Step 6: Final answer
    x = 163,912.16

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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.