Finding the Fourth Proportional to 129,621.33, 194,459.13 and 54,741.69
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Solution
The fourth proportional to 129,621.33, 194,459.13 and 54,741.69 is: 82,123.99
Step by Step Solution
- Step 1: Write the proportion equation
129,621.33 : 194,459.13 = 54,741.69 : x - Step 2: Convert to fraction form
129,621.33/194,459.13 = 54,741.69/x - Step 3: Cross multiply
129,621.33x = 194,459.13 × 54,741.69 - Step 4: Simplify right side
129,621.33x = 10,645,021,412.13 - Step 5: Solve for x
x = 10,645,021,412.13/129,621.33 - Step 6: Final answer
x = 82,123.99
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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.