Finding the Fourth Proportional to 76,163.36, 114,447.80 and 71,375.05
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Solution
The fourth proportional to 76,163.36, 114,447.80 and 71,375.05 is: 107,252.59
Step by Step Solution
- Step 1: Write the proportion equation
76,163.36 : 114,447.80 = 71,375.05 : x - Step 2: Convert to fraction form
76,163.36/114,447.80 = 71,375.05/x - Step 3: Cross multiply
76,163.36x = 114,447.80 × 71,375.05 - Step 4: Simplify right side
76,163.36x = 8,168,717,447.39 - Step 5: Solve for x
x = 8,168,717,447.39/76,163.36 - Step 6: Final answer
x = 107,252.59
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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.