Home / 201,512.08-278,055.88-120,922

Finding the Fourth Proportional to 201,512.08, 278,055.88 and 120,922

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Solution

The fourth proportional to 201,512.08, 278,055.88 and 120,922 is: 166,853.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,512.08 : 278,055.88 = 120,922 : x
  2. Step 2: Convert to fraction form
    201,512.08/278,055.88 = 120,922/x
  3. Step 3: Cross multiply
    201,512.08x = 278,055.88 × 120,922
  4. Step 4: Simplify right side
    201,512.08x = 33,623,073,121.36
  5. Step 5: Solve for x
    x = 33,623,073,121.36/201,512.08
  6. Step 6: Final answer
    x = 166,853.88

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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.