Home / 208,729.60-312,845.29-113,983.64

Finding the Fourth Proportional to 208,729.60, 312,845.29 and 113,983.64

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Solution

The fourth proportional to 208,729.60, 312,845.29 and 113,983.64 is: 170,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,729.60 : 312,845.29 = 113,983.64 : x
  2. Step 2: Convert to fraction form
    208,729.60/312,845.29 = 113,983.64/x
  3. Step 3: Cross multiply
    208,729.60x = 312,845.29 × 113,983.64
  4. Step 4: Simplify right side
    208,729.60x = 35,659,244,128.94
  5. Step 5: Solve for x
    x = 35,659,244,128.94/208,729.60
  6. Step 6: Final answer
    x = 170,839.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.