Home / 209,568.05-289,195.86-118,918.61

Finding the Fourth Proportional to 209,568.05, 289,195.86 and 118,918.61

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Solution

The fourth proportional to 209,568.05, 289,195.86 and 118,918.61 is: 164,103.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,568.05 : 289,195.86 = 118,918.61 : x
  2. Step 2: Convert to fraction form
    209,568.05/289,195.86 = 118,918.61/x
  3. Step 3: Cross multiply
    209,568.05x = 289,195.86 × 118,918.61
  4. Step 4: Simplify right side
    209,568.05x = 34,390,769,688.95
  5. Step 5: Solve for x
    x = 34,390,769,688.95/209,568.05
  6. Step 6: Final answer
    x = 164,103.11

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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.