Finding the Fourth Proportional to 135,239.20, 202,858.80 and 60,359.20
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Solution
The fourth proportional to 135,239.20, 202,858.80 and 60,359.20 is: 90,538.80
Step by Step Solution
- Step 1: Write the proportion equation
135,239.20 : 202,858.80 = 60,359.20 : x - Step 2: Convert to fraction form
135,239.20/202,858.80 = 60,359.20/x - Step 3: Cross multiply
135,239.20x = 202,858.80 × 60,359.20 - Step 4: Simplify right side
135,239.20x = 12,244,394,880.96 - Step 5: Solve for x
x = 12,244,394,880.96/135,239.20 - Step 6: Final answer
x = 90,538.80
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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.