Home / 178,909.75-268,167.39-115,579.90

Finding the Fourth Proportional to 178,909.75, 268,167.39 and 115,579.90

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Solution

The fourth proportional to 178,909.75, 268,167.39 and 115,579.90 is: 173,242.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,909.75 : 268,167.39 = 115,579.90 : x
  2. Step 2: Convert to fraction form
    178,909.75/268,167.39 = 115,579.90/x
  3. Step 3: Cross multiply
    178,909.75x = 268,167.39 × 115,579.90
  4. Step 4: Simplify right side
    178,909.75x = 30,994,760,119.46
  5. Step 5: Solve for x
    x = 30,994,760,119.46/178,909.75
  6. Step 6: Final answer
    x = 173,242.43

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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.