Finding the Fourth Proportional to 103,893.75, 155,840.67 and 25,007.99
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Solution
The fourth proportional to 103,893.75, 155,840.67 and 25,007.99 is: 37,511.99
Step by Step Solution
- Step 1: Write the proportion equation
103,893.75 : 155,840.67 = 25,007.99 : x - Step 2: Convert to fraction form
103,893.75/155,840.67 = 25,007.99/x - Step 3: Cross multiply
103,893.75x = 155,840.67 × 25,007.99 - Step 4: Simplify right side
103,893.75x = 3,897,261,137.75 - Step 5: Solve for x
x = 3,897,261,137.75/103,893.75 - Step 6: Final answer
x = 37,511.99
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1.5x scale
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.