Home / 122,757.40-183,941.70-102,928.60

Finding the Fourth Proportional to 122,757.40, 183,941.70 and 102,928.60

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Solution

The fourth proportional to 122,757.40, 183,941.70 and 102,928.60 is: 154,229.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,757.40 : 183,941.70 = 102,928.60 : x
  2. Step 2: Convert to fraction form
    122,757.40/183,941.70 = 102,928.60/x
  3. Step 3: Cross multiply
    122,757.40x = 183,941.70 × 102,928.60
  4. Step 4: Simplify right side
    122,757.40x = 18,932,861,662.62
  5. Step 5: Solve for x
    x = 18,932,861,662.62/122,757.40
  6. Step 6: Final answer
    x = 154,229.90

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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.