Home / 201,729.20-278,388.38-111,093.60

Finding the Fourth Proportional to 201,729.20, 278,388.38 and 111,093.60

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Solution

The fourth proportional to 201,729.20, 278,388.38 and 111,093.60 is: 153,310.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,729.20 : 278,388.38 = 111,093.60 : x
  2. Step 2: Convert to fraction form
    201,729.20/278,388.38 = 111,093.60/x
  3. Step 3: Cross multiply
    201,729.20x = 278,388.38 × 111,093.60
  4. Step 4: Simplify right side
    201,729.20x = 30,927,167,332.37
  5. Step 5: Solve for x
    x = 30,927,167,332.37/201,729.20
  6. Step 6: Final answer
    x = 153,310.32

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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.