Finding the Fourth Proportional to 151,732.68, 209,390.90 and 84,664.68
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Solution
The fourth proportional to 151,732.68, 209,390.90 and 84,664.68 is: 116,837.15
Step by Step Solution
- Step 1: Write the proportion equation
151,732.68 : 209,390.90 = 84,664.68 : x - Step 2: Convert to fraction form
151,732.68/209,390.90 = 84,664.68/x - Step 3: Cross multiply
151,732.68x = 209,390.90 × 84,664.68 - Step 4: Simplify right side
151,732.68x = 17,728,013,543.41 - Step 5: Solve for x
x = 17,728,013,543.41/151,732.68 - Step 6: Final answer
x = 116,837.15
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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.