Finding the Fourth Proportional to 124,709.26, 172,099.69 and 68,120.62
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Solution
The fourth proportional to 124,709.26, 172,099.69 and 68,120.62 is: 94,006.95
Step by Step Solution
- Step 1: Write the proportion equation
124,709.26 : 172,099.69 = 68,120.62 : x - Step 2: Convert to fraction form
124,709.26/172,099.69 = 68,120.62/x - Step 3: Cross multiply
124,709.26x = 172,099.69 × 68,120.62 - Step 4: Simplify right side
124,709.26x = 11,723,537,584.61 - Step 5: Solve for x
x = 11,723,537,584.61/124,709.26 - Step 6: Final answer
x = 94,006.95
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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.