Home / 154,178.42-231,264.03-71,072.42

Finding the Fourth Proportional to 154,178.42, 231,264.03 and 71,072.42

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Solution

The fourth proportional to 154,178.42, 231,264.03 and 71,072.42 is: 106,606.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,178.42 : 231,264.03 = 71,072.42 : x
  2. Step 2: Convert to fraction form
    154,178.42/231,264.03 = 71,072.42/x
  3. Step 3: Cross multiply
    154,178.42x = 231,264.03 × 71,072.42
  4. Step 4: Simplify right side
    154,178.42x = 16,436,494,271.05
  5. Step 5: Solve for x
    x = 16,436,494,271.05/154,178.42
  6. Step 6: Final answer
    x = 106,606.97

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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.