Finding the Fourth Proportional to 142,779.70, 214,170.03 and 36,163.62
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Solution
The fourth proportional to 142,779.70, 214,170.03 and 36,163.62 is: 54,245.55
Step by Step Solution
- Step 1: Write the proportion equation
142,779.70 : 214,170.03 = 36,163.62 : x - Step 2: Convert to fraction form
142,779.70/214,170.03 = 36,163.62/x - Step 3: Cross multiply
142,779.70x = 214,170.03 × 36,163.62 - Step 4: Simplify right side
142,779.70x = 7,745,163,580.31 - Step 5: Solve for x
x = 7,745,163,580.31/142,779.70 - Step 6: Final answer
x = 54,245.55
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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.