Home / 209,474.34-289,078.05-113,981.52

Finding the Fourth Proportional to 209,474.34, 289,078.05 and 113,981.52

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Solution

The fourth proportional to 209,474.34, 289,078.05 and 113,981.52 is: 157,296.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,474.34 : 289,078.05 = 113,981.52 : x
  2. Step 2: Convert to fraction form
    209,474.34/289,078.05 = 113,981.52/x
  3. Step 3: Cross multiply
    209,474.34x = 289,078.05 × 113,981.52
  4. Step 4: Simplify right side
    209,474.34x = 32,949,555,537.64
  5. Step 5: Solve for x
    x = 32,949,555,537.64/209,474.34
  6. Step 6: Final answer
    x = 157,296.38

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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.