Home / 201,976.28-278,682.36-115,930

Finding the Fourth Proportional to 201,976.28, 278,682.36 and 115,930

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Solution

The fourth proportional to 201,976.28, 278,682.36 and 115,930 is: 159,957.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,976.28 : 278,682.36 = 115,930 : x
  2. Step 2: Convert to fraction form
    201,976.28/278,682.36 = 115,930/x
  3. Step 3: Cross multiply
    201,976.28x = 278,682.36 × 115,930
  4. Step 4: Simplify right side
    201,976.28x = 32,307,645,994.80
  5. Step 5: Solve for x
    x = 32,307,645,994.80/201,976.28
  6. Step 6: Final answer
    x = 159,957.62

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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.