Home / 190,158.30-285,237.45-111,231.90

Finding the Fourth Proportional to 190,158.30, 285,237.45 and 111,231.90

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Solution

The fourth proportional to 190,158.30, 285,237.45 and 111,231.90 is: 166,847.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,158.30 : 285,237.45 = 111,231.90 : x
  2. Step 2: Convert to fraction form
    190,158.30/285,237.45 = 111,231.90/x
  3. Step 3: Cross multiply
    190,158.30x = 285,237.45 × 111,231.90
  4. Step 4: Simplify right side
    190,158.30x = 31,727,503,514.66
  5. Step 5: Solve for x
    x = 31,727,503,514.66/190,158.30
  6. Step 6: Final answer
    x = 166,847.85

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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.