Home / 190,540.74-262,967.90-109,989.88

Finding the Fourth Proportional to 190,540.74, 262,967.90 and 109,989.88

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Solution

The fourth proportional to 190,540.74, 262,967.90 and 109,989.88 is: 151,798.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,540.74 : 262,967.90 = 109,989.88 : x
  2. Step 2: Convert to fraction form
    190,540.74/262,967.90 = 109,989.88/x
  3. Step 3: Cross multiply
    190,540.74x = 262,967.90 × 109,989.88
  4. Step 4: Simplify right side
    190,540.74x = 28,923,807,764.85
  5. Step 5: Solve for x
    x = 28,923,807,764.85/190,540.74
  6. Step 6: Final answer
    x = 151,798.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.