Home / 201,921.20-278,647.44-117,046.16

Finding the Fourth Proportional to 201,921.20, 278,647.44 and 117,046.16

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Solution

The fourth proportional to 201,921.20, 278,647.44 and 117,046.16 is: 161,521.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,921.20 : 278,647.44 = 117,046.16 : x
  2. Step 2: Convert to fraction form
    201,921.20/278,647.44 = 117,046.16/x
  3. Step 3: Cross multiply
    201,921.20x = 278,647.44 × 117,046.16
  4. Step 4: Simplify right side
    201,921.20x = 32,614,612,845.83
  5. Step 5: Solve for x
    x = 32,614,612,845.83/201,921.20
  6. Step 6: Final answer
    x = 161,521.49

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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.