Home / 202,490.20-279,388.74-117,556.84

Finding the Fourth Proportional to 202,490.20, 279,388.74 and 117,556.84

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Solution

The fourth proportional to 202,490.20, 279,388.74 and 117,556.84 is: 162,200.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,490.20 : 279,388.74 = 117,556.84 : x
  2. Step 2: Convert to fraction form
    202,490.20/279,388.74 = 117,556.84/x
  3. Step 3: Cross multiply
    202,490.20x = 279,388.74 × 117,556.84
  4. Step 4: Simplify right side
    202,490.20x = 32,844,057,405.98
  5. Step 5: Solve for x
    x = 32,844,057,405.98/202,490.20
  6. Step 6: Final answer
    x = 162,200.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.