Home / 208,986.40-313,343.28-75,841.44

Finding the Fourth Proportional to 208,986.40, 313,343.28 and 75,841.44

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Solution

The fourth proportional to 208,986.40, 313,343.28 and 75,841.44 is: 113,712.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,986.40 : 313,343.28 = 75,841.44 : x
  2. Step 2: Convert to fraction form
    208,986.40/313,343.28 = 75,841.44/x
  3. Step 3: Cross multiply
    208,986.40x = 313,343.28 × 75,841.44
  4. Step 4: Simplify right side
    208,986.40x = 23,764,405,569.52
  5. Step 5: Solve for x
    x = 23,764,405,569.52/208,986.40
  6. Step 6: Final answer
    x = 113,712.69

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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.