Finding the Fourth Proportional to 129,883.54, 194,830.77 and 41,135.08
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Solution
The fourth proportional to 129,883.54, 194,830.77 and 41,135.08 is: 61,704.35
Step by Step Solution
- Step 1: Write the proportion equation
129,883.54 : 194,830.77 = 41,135.08 : x - Step 2: Convert to fraction form
129,883.54/194,830.77 = 41,135.08/x - Step 3: Cross multiply
129,883.54x = 194,830.77 × 41,135.08 - Step 4: Simplify right side
129,883.54x = 8,014,379,097.84 - Step 5: Solve for x
x = 8,014,379,097.84/129,883.54 - Step 6: Final answer
x = 61,704.35
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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.