Finding the Fourth Proportional to 136,640.05, 204,936.81 and 36,777.99
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Solution
The fourth proportional to 136,640.05, 204,936.81 and 36,777.99 is: 55,160.72
Step by Step Solution
- Step 1: Write the proportion equation
136,640.05 : 204,936.81 = 36,777.99 : x - Step 2: Convert to fraction form
136,640.05/204,936.81 = 36,777.99/x - Step 3: Cross multiply
136,640.05x = 204,936.81 × 36,777.99 - Step 4: Simplify right side
136,640.05x = 7,537,163,948.81 - Step 5: Solve for x
x = 7,537,163,948.81/136,640.05 - Step 6: Final answer
x = 55,160.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.