Finding the Fourth Proportional to 125,902.72, 173,745.84 and 69,312.88
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Solution
The fourth proportional to 125,902.72, 173,745.84 and 69,312.88 is: 95,651.82
Step by Step Solution
- Step 1: Write the proportion equation
125,902.72 : 173,745.84 = 69,312.88 : x - Step 2: Convert to fraction form
125,902.72/173,745.84 = 69,312.88/x - Step 3: Cross multiply
125,902.72x = 173,745.84 × 69,312.88 - Step 4: Simplify right side
125,902.72x = 12,042,824,558.42 - Step 5: Solve for x
x = 12,042,824,558.42/125,902.72 - Step 6: Final answer
x = 95,651.82
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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.