Finding the Fourth Proportional to 129,504.89, 194,281.94 and 45,288.99
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Solution
The fourth proportional to 129,504.89, 194,281.94 and 45,288.99 is: 67,942.09
Step by Step Solution
- Step 1: Write the proportion equation
129,504.89 : 194,281.94 = 45,288.99 : x - Step 2: Convert to fraction form
129,504.89/194,281.94 = 45,288.99/x - Step 3: Cross multiply
129,504.89x = 194,281.94 × 45,288.99 - Step 4: Simplify right side
129,504.89x = 8,798,832,837.84 - Step 5: Solve for x
x = 8,798,832,837.84/129,504.89 - Step 6: Final answer
x = 67,942.09
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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.