Home / 209,986.20-289,782.32-114,494.49

Finding the Fourth Proportional to 209,986.20, 289,782.32 and 114,494.49

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Solution

The fourth proportional to 209,986.20, 289,782.32 and 114,494.49 is: 158,003.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,986.20 : 289,782.32 = 114,494.49 : x
  2. Step 2: Convert to fraction form
    209,986.20/289,782.32 = 114,494.49/x
  3. Step 3: Cross multiply
    209,986.20x = 289,782.32 × 114,494.49
  4. Step 4: Simplify right side
    209,986.20x = 33,178,478,939.42
  5. Step 5: Solve for x
    x = 33,178,478,939.42/209,986.20
  6. Step 6: Final answer
    x = 158,003.14

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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.