Finding the Fourth Proportional to 115,415.40, 173,147.40 and 36,537.60
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Solution
The fourth proportional to 115,415.40, 173,147.40 and 36,537.60 is: 54,814.09
Step by Step Solution
- Step 1: Write the proportion equation
115,415.40 : 173,147.40 = 36,537.60 : x - Step 2: Convert to fraction form
115,415.40/173,147.40 = 36,537.60/x - Step 3: Cross multiply
115,415.40x = 173,147.40 × 36,537.60 - Step 4: Simplify right side
115,415.40x = 6,326,390,442.24 - Step 5: Solve for x
x = 6,326,390,442.24/115,415.40 - Step 6: Final answer
x = 54,814.09
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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.