Finding the Fourth Proportional to 135,929.20, 203,893.80 and 100,937.20
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Solution
The fourth proportional to 135,929.20, 203,893.80 and 100,937.20 is: 151,405.80
Step by Step Solution
- Step 1: Write the proportion equation
135,929.20 : 203,893.80 = 100,937.20 : x - Step 2: Convert to fraction form
135,929.20/203,893.80 = 100,937.20/x - Step 3: Cross multiply
135,929.20x = 203,893.80 × 100,937.20 - Step 4: Simplify right side
135,929.20x = 20,580,469,269.36 - Step 5: Solve for x
x = 20,580,469,269.36/135,929.20 - Step 6: Final answer
x = 151,405.80
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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.