Home / 209,913.75-289,676.67-114,419.61

Finding the Fourth Proportional to 209,913.75, 289,676.67 and 114,419.61

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Solution

The fourth proportional to 209,913.75, 289,676.67 and 114,419.61 is: 157,896.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,913.75 : 289,676.67 = 114,419.61 : x
  2. Step 2: Convert to fraction form
    209,913.75/289,676.67 = 114,419.61/x
  3. Step 3: Cross multiply
    209,913.75x = 289,676.67 × 114,419.61
  4. Step 4: Simplify right side
    209,913.75x = 33,144,691,607.50
  5. Step 5: Solve for x
    x = 33,144,691,607.50/209,913.75
  6. Step 6: Final answer
    x = 157,896.72

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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.