Finding the Fourth Proportional to 122,486.44, 183,729.66 and 39,380.44
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Solution
The fourth proportional to 122,486.44, 183,729.66 and 39,380.44 is: 59,070.66
Step by Step Solution
- Step 1: Write the proportion equation
122,486.44 : 183,729.66 = 39,380.44 : x - Step 2: Convert to fraction form
122,486.44/183,729.66 = 39,380.44/x - Step 3: Cross multiply
122,486.44x = 183,729.66 × 39,380.44 - Step 4: Simplify right side
122,486.44x = 7,235,354,851.85 - Step 5: Solve for x
x = 7,235,354,851.85/122,486.44 - Step 6: Final answer
x = 59,070.66
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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.