Finding the Fourth Proportional to 136,519.41, 188,393.61 and 79,168.98
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Solution
The fourth proportional to 136,519.41, 188,393.61 and 79,168.98 is: 109,251.35
Step by Step Solution
- Step 1: Write the proportion equation
136,519.41 : 188,393.61 = 79,168.98 : x - Step 2: Convert to fraction form
136,519.41/188,393.61 = 79,168.98/x - Step 3: Cross multiply
136,519.41x = 188,393.61 × 79,168.98 - Step 4: Simplify right side
136,519.41x = 14,914,929,942.22 - Step 5: Solve for x
x = 14,914,929,942.22/136,519.41 - Step 6: Final answer
x = 109,251.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.