Home / 154,956.41-231,936.31-79,974.42

Finding the Fourth Proportional to 154,956.41, 231,936.31 and 79,974.42

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Solution

The fourth proportional to 154,956.41, 231,936.31 and 79,974.42 is: 119,704.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,956.41 : 231,936.31 = 79,974.42 : x
  2. Step 2: Convert to fraction form
    154,956.41/231,936.31 = 79,974.42/x
  3. Step 3: Cross multiply
    154,956.41x = 231,936.31 × 79,974.42
  4. Step 4: Simplify right side
    154,956.41x = 18,548,971,869.19
  5. Step 5: Solve for x
    x = 18,548,971,869.19/154,956.41
  6. Step 6: Final answer
    x = 119,704.45

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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.