Finding the Fourth Proportional to 139,151.21, 208,596.97 and 54,912.08
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Solution
The fourth proportional to 139,151.21, 208,596.97 and 54,912.08 is: 82,316.87
Step by Step Solution
- Step 1: Write the proportion equation
139,151.21 : 208,596.97 = 54,912.08 : x - Step 2: Convert to fraction form
139,151.21/208,596.97 = 54,912.08/x - Step 3: Cross multiply
139,151.21x = 208,596.97 × 54,912.08 - Step 4: Simplify right side
139,151.21x = 11,454,492,324.13 - Step 5: Solve for x
x = 11,454,492,324.13/139,151.21 - Step 6: Final answer
x = 82,316.87
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.