Home / 206,156.25-309,271.29-106,289.64

Finding the Fourth Proportional to 206,156.25, 309,271.29 and 106,289.64

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Solution

The fourth proportional to 206,156.25, 309,271.29 and 106,289.64 is: 159,453.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,156.25 : 309,271.29 = 106,289.64 : x
  2. Step 2: Convert to fraction form
    206,156.25/309,271.29 = 106,289.64/x
  3. Step 3: Cross multiply
    206,156.25x = 309,271.29 × 106,289.64
  4. Step 4: Simplify right side
    206,156.25x = 32,872,334,076.44
  5. Step 5: Solve for x
    x = 32,872,334,076.44/206,156.25
  6. Step 6: Final answer
    x = 159,453.49

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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.