Home / 209,476.26-314,173.83-81,392.32

Finding the Fourth Proportional to 209,476.26, 314,173.83 and 81,392.32

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Solution

The fourth proportional to 209,476.26, 314,173.83 and 81,392.32 is: 122,072.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,476.26 : 314,173.83 = 81,392.32 : x
  2. Step 2: Convert to fraction form
    209,476.26/314,173.83 = 81,392.32/x
  3. Step 3: Cross multiply
    209,476.26x = 314,173.83 × 81,392.32
  4. Step 4: Simplify right side
    209,476.26x = 25,571,336,906.99
  5. Step 5: Solve for x
    x = 25,571,336,906.99/209,476.26
  6. Step 6: Final answer
    x = 122,072.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.