Finding the Fourth Proportional to 129,861.95, 194,800.31 and 36,374.99
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Solution
The fourth proportional to 129,861.95, 194,800.31 and 36,374.99 is: 54,564.55
Step by Step Solution
- Step 1: Write the proportion equation
129,861.95 : 194,800.31 = 36,374.99 : x - Step 2: Convert to fraction form
129,861.95/194,800.31 = 36,374.99/x - Step 3: Cross multiply
129,861.95x = 194,800.31 × 36,374.99 - Step 4: Simplify right side
129,861.95x = 7,085,858,172.37 - Step 5: Solve for x
x = 7,085,858,172.37/129,861.95 - Step 6: Final answer
x = 54,564.55
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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.