Finding the Fourth Proportional to 136,751.58, 188,704.40 and 79,375.68
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Solution
The fourth proportional to 136,751.58, 188,704.40 and 79,375.68 is: 109,531.02
Step by Step Solution
- Step 1: Write the proportion equation
136,751.58 : 188,704.40 = 79,375.68 : x - Step 2: Convert to fraction form
136,751.58/188,704.40 = 79,375.68/x - Step 3: Cross multiply
136,751.58x = 188,704.40 × 79,375.68 - Step 4: Simplify right side
136,751.58x = 14,978,539,672.11 - Step 5: Solve for x
x = 14,978,539,672.11/136,751.58 - Step 6: Final answer
x = 109,531.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.