Home / 209,474.97-289,078.91-113,982.15

Finding the Fourth Proportional to 209,474.97, 289,078.91 and 113,982.15

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Solution

The fourth proportional to 209,474.97, 289,078.91 and 113,982.15 is: 157,297.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,474.97 : 289,078.91 = 113,982.15 : x
  2. Step 2: Convert to fraction form
    209,474.97/289,078.91 = 113,982.15/x
  3. Step 3: Cross multiply
    209,474.97x = 289,078.91 × 113,982.15
  4. Step 4: Simplify right side
    209,474.97x = 32,949,835,681.46
  5. Step 5: Solve for x
    x = 32,949,835,681.46/209,474.97
  6. Step 6: Final answer
    x = 157,297.25

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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.