Finding the Fourth Proportional to 118,722.14, 178,088.68 and 66,091.99
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Solution
The fourth proportional to 118,722.14, 178,088.68 and 66,091.99 is: 99,141.02
Step by Step Solution
- Step 1: Write the proportion equation
118,722.14 : 178,088.68 = 66,091.99 : x - Step 2: Convert to fraction form
118,722.14/178,088.68 = 66,091.99/x - Step 3: Cross multiply
118,722.14x = 178,088.68 × 66,091.99 - Step 4: Simplify right side
118,722.14x = 11,770,234,367.23 - Step 5: Solve for x
x = 11,770,234,367.23/118,722.14 - Step 6: Final answer
x = 99,141.02
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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.