Finding the Fourth Proportional to 178,753.72, 246,678.96 and 107,133.70
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Solution
The fourth proportional to 178,753.72, 246,678.96 and 107,133.70 is: 147,843.80
Step by Step Solution
- Step 1: Write the proportion equation
178,753.72 : 246,678.96 = 107,133.70 : x - Step 2: Convert to fraction form
178,753.72/246,678.96 = 107,133.70/x - Step 3: Cross multiply
178,753.72x = 246,678.96 × 107,133.70 - Step 4: Simplify right side
178,753.72x = 26,427,629,696.95 - Step 5: Solve for x
x = 26,427,629,696.95/178,753.72 - Step 6: Final answer
x = 147,843.80
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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.