Finding the Fourth Proportional to 178,910.20, 268,397.70 and 89,939.80
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Solution
The fourth proportional to 178,910.20, 268,397.70 and 89,939.80 is: 134,925.99
Step by Step Solution
- Step 1: Write the proportion equation
178,910.20 : 268,397.70 = 89,939.80 : x - Step 2: Convert to fraction form
178,910.20/268,397.70 = 89,939.80/x - Step 3: Cross multiply
178,910.20x = 268,397.70 × 89,939.80 - Step 4: Simplify right side
178,910.20x = 24,139,635,458.46 - Step 5: Solve for x
x = 24,139,635,458.46/178,910.20 - Step 6: Final answer
x = 134,925.99
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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.