Home / 209,387.05-289,116.32-160,912.19

Finding the Fourth Proportional to 209,387.05, 289,116.32 and 160,912.19

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Solution

The fourth proportional to 209,387.05, 289,116.32 and 160,912.19 is: 222,183.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,387.05 : 289,116.32 = 160,912.19 : x
  2. Step 2: Convert to fraction form
    209,387.05/289,116.32 = 160,912.19/x
  3. Step 3: Cross multiply
    209,387.05x = 289,116.32 × 160,912.19
  4. Step 4: Simplify right side
    209,387.05x = 46,522,340,134.17
  5. Step 5: Solve for x
    x = 46,522,340,134.17/209,387.05
  6. Step 6: Final answer
    x = 222,183.47

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1.5x scale

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.