Home / 190,486.56-285,479.12-106,286.34

Finding the Fourth Proportional to 190,486.56, 285,479.12 and 106,286.34

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Solution

The fourth proportional to 190,486.56, 285,479.12 and 106,286.34 is: 159,289.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,486.56 : 285,479.12 = 106,286.34 : x
  2. Step 2: Convert to fraction form
    190,486.56/285,479.12 = 106,286.34/x
  3. Step 3: Cross multiply
    190,486.56x = 285,479.12 × 106,286.34
  4. Step 4: Simplify right side
    190,486.56x = 30,342,530,811.22
  5. Step 5: Solve for x
    x = 30,342,530,811.22/190,486.56
  6. Step 6: Final answer
    x = 159,289.62

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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.