Home / 140,847.23-211,481.90-121,930.21

Finding the Fourth Proportional to 140,847.23, 211,481.90 and 121,930.21

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Solution

The fourth proportional to 140,847.23, 211,481.90 and 121,930.21 is: 183,078.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,847.23 : 211,481.90 = 121,930.21 : x
  2. Step 2: Convert to fraction form
    140,847.23/211,481.90 = 121,930.21/x
  3. Step 3: Cross multiply
    140,847.23x = 211,481.90 × 121,930.21
  4. Step 4: Simplify right side
    140,847.23x = 25,786,032,478.20
  5. Step 5: Solve for x
    x = 25,786,032,478.20/140,847.23
  6. Step 6: Final answer
    x = 183,078.02

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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.