Finding the Fourth Proportional to 118,755.09, 178,144.34 and 34,515.99
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Solution
The fourth proportional to 118,755.09, 178,144.34 and 34,515.99 is: 51,777.39
Step by Step Solution
- Step 1: Write the proportion equation
118,755.09 : 178,144.34 = 34,515.99 : x - Step 2: Convert to fraction form
118,755.09/178,144.34 = 34,515.99/x - Step 3: Cross multiply
118,755.09x = 178,144.34 × 34,515.99 - Step 4: Simplify right side
118,755.09x = 6,148,828,085.42 - Step 5: Solve for x
x = 6,148,828,085.42/118,755.09 - Step 6: Final answer
x = 51,777.39
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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.