Finding the Fourth Proportional to 187,629.12, 258,928.88 and 102,745.44
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Solution
The fourth proportional to 187,629.12, 258,928.88 and 102,745.44 is: 141,789.09
Step by Step Solution
- Step 1: Write the proportion equation
187,629.12 : 258,928.88 = 102,745.44 : x - Step 2: Convert to fraction form
187,629.12/258,928.88 = 102,745.44/x - Step 3: Cross multiply
187,629.12x = 258,928.88 × 102,745.44 - Step 4: Simplify right side
187,629.12x = 26,603,761,704.31 - Step 5: Solve for x
x = 26,603,761,704.31/187,629.12 - Step 6: Final answer
x = 141,789.09
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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.