Home / 190,808.78-263,337.09-109,144.58

Finding the Fourth Proportional to 190,808.78, 263,337.09 and 109,144.58

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Solution

The fourth proportional to 190,808.78, 263,337.09 and 109,144.58 is: 150,631.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,808.78 : 263,337.09 = 109,144.58 : x
  2. Step 2: Convert to fraction form
    190,808.78/263,337.09 = 109,144.58/x
  3. Step 3: Cross multiply
    190,808.78x = 263,337.09 × 109,144.58
  4. Step 4: Simplify right side
    190,808.78x = 28,741,814,769.79
  5. Step 5: Solve for x
    x = 28,741,814,769.79/190,808.78
  6. Step 6: Final answer
    x = 150,631.51

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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.