Home / 102,940.04-154,408.38-40,611.08

Finding the Fourth Proportional to 102,940.04, 154,408.38 and 40,611.08

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Solution

The fourth proportional to 102,940.04, 154,408.38 and 40,611.08 is: 60,915.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,940.04 : 154,408.38 = 40,611.08 : x
  2. Step 2: Convert to fraction form
    102,940.04/154,408.38 = 40,611.08/x
  3. Step 3: Cross multiply
    102,940.04x = 154,408.38 × 40,611.08
  4. Step 4: Simplify right side
    102,940.04x = 6,270,691,072.85
  5. Step 5: Solve for x
    x = 6,270,691,072.85/102,940.04
  6. Step 6: Final answer
    x = 60,915.96

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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.