Finding the Fourth Proportional to 129,611.13, 194,493.23 and 54,726.42
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Solution
The fourth proportional to 129,611.13, 194,493.23 and 54,726.42 is: 82,121.95
Step by Step Solution
- Step 1: Write the proportion equation
129,611.13 : 194,493.23 = 54,726.42 : x - Step 2: Convert to fraction form
129,611.13/194,493.23 = 54,726.42/x - Step 3: Cross multiply
129,611.13x = 194,493.23 × 54,726.42 - Step 4: Simplify right side
129,611.13x = 10,643,918,192.14 - Step 5: Solve for x
x = 10,643,918,192.14/129,611.13 - Step 6: Final answer
x = 82,121.95
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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.