Finding the Fourth Proportional to 171,696.21, 236,691.87 and 120,553.21
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Solution
The fourth proportional to 171,696.21, 236,691.87 and 120,553.21 is: 166,188.68
Step by Step Solution
- Step 1: Write the proportion equation
171,696.21 : 236,691.87 = 120,553.21 : x - Step 2: Convert to fraction form
171,696.21/236,691.87 = 120,553.21/x - Step 3: Cross multiply
171,696.21x = 236,691.87 × 120,553.21 - Step 4: Simplify right side
171,696.21x = 28,533,965,231.30 - Step 5: Solve for x
x = 28,533,965,231.30/171,696.21 - Step 6: Final answer
x = 166,188.68
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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.