Home / 209,961.21-289,740.60-114,467.88

Finding the Fourth Proportional to 209,961.21, 289,740.60 and 114,467.88

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Solution

The fourth proportional to 209,961.21, 289,740.60 and 114,467.88 is: 157,962.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,961.21 : 289,740.60 = 114,467.88 : x
  2. Step 2: Convert to fraction form
    209,961.21/289,740.60 = 114,467.88/x
  3. Step 3: Cross multiply
    209,961.21x = 289,740.60 × 114,467.88
  4. Step 4: Simplify right side
    209,961.21x = 33,165,992,231.93
  5. Step 5: Solve for x
    x = 33,165,992,231.93/209,961.21
  6. Step 6: Final answer
    x = 157,962.47

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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.