Finding the Fourth Proportional to 129,779.92, 194,670.08 and 36,285.60
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Solution
The fourth proportional to 129,779.92, 194,670.08 and 36,285.60 is: 54,428.46
Step by Step Solution
- Step 1: Write the proportion equation
129,779.92 : 194,670.08 = 36,285.60 : x - Step 2: Convert to fraction form
129,779.92/194,670.08 = 36,285.60/x - Step 3: Cross multiply
129,779.92x = 194,670.08 × 36,285.60 - Step 4: Simplify right side
129,779.92x = 7,063,720,654.85 - Step 5: Solve for x
x = 7,063,720,654.85/129,779.92 - Step 6: Final answer
x = 54,428.46
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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.