Home / 209,564.05-289,190.34-118,914.61

Finding the Fourth Proportional to 209,564.05, 289,190.34 and 118,914.61

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Solution

The fourth proportional to 209,564.05, 289,190.34 and 118,914.61 is: 164,097.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,564.05 : 289,190.34 = 118,914.61 : x
  2. Step 2: Convert to fraction form
    209,564.05/289,190.34 = 118,914.61/x
  3. Step 3: Cross multiply
    209,564.05x = 289,190.34 × 118,914.61
  4. Step 4: Simplify right side
    209,564.05x = 34,388,956,496.87
  5. Step 5: Solve for x
    x = 34,388,956,496.87/209,564.05
  6. Step 6: Final answer
    x = 164,097.59

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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.