Home / 190,318.91-285,388.97-110,379.60

Finding the Fourth Proportional to 190,318.91, 285,388.97 and 110,379.60

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Solution

The fourth proportional to 190,318.91, 285,388.97 and 110,379.60 is: 165,517.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,318.91 : 285,388.97 = 110,379.60 : x
  2. Step 2: Convert to fraction form
    190,318.91/285,388.97 = 110,379.60/x
  3. Step 3: Cross multiply
    190,318.91x = 285,388.97 × 110,379.60
  4. Step 4: Simplify right side
    190,318.91x = 31,501,119,801.11
  5. Step 5: Solve for x
    x = 31,501,119,801.11/190,318.91
  6. Step 6: Final answer
    x = 165,517.55

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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.