Finding the Fourth Proportional to 135,452.09, 203,001.50 and 75,478.05
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Solution
The fourth proportional to 135,452.09, 203,001.50 and 75,478.05 is: 113,118.65
Step by Step Solution
- Step 1: Write the proportion equation
135,452.09 : 203,001.50 = 75,478.05 : x - Step 2: Convert to fraction form
135,452.09/203,001.50 = 75,478.05/x - Step 3: Cross multiply
135,452.09x = 203,001.50 × 75,478.05 - Step 4: Simplify right side
135,452.09x = 15,322,157,555.77 - Step 5: Solve for x
x = 15,322,157,555.77/135,452.09 - Step 6: Final answer
x = 113,118.65
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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.