Home / 209,112.66-288,576.54-113,619.60

Finding the Fourth Proportional to 209,112.66, 288,576.54 and 113,619.60

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Solution

The fourth proportional to 209,112.66, 288,576.54 and 113,619.60 is: 156,795.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,112.66 : 288,576.54 = 113,619.60 : x
  2. Step 2: Convert to fraction form
    209,112.66/288,576.54 = 113,619.60/x
  3. Step 3: Cross multiply
    209,112.66x = 288,576.54 × 113,619.60
  4. Step 4: Simplify right side
    209,112.66x = 32,787,951,044.18
  5. Step 5: Solve for x
    x = 32,787,951,044.18/209,112.66
  6. Step 6: Final answer
    x = 156,795.63

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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.