Finding the Fourth Proportional to 187,072.75, 258,165.45 and 111,664.99
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Solution
The fourth proportional to 187,072.75, 258,165.45 and 111,664.99 is: 154,100.70
Step by Step Solution
- Step 1: Write the proportion equation
187,072.75 : 258,165.45 = 111,664.99 : x - Step 2: Convert to fraction form
187,072.75/258,165.45 = 111,664.99/x - Step 3: Cross multiply
187,072.75x = 258,165.45 × 111,664.99 - Step 4: Simplify right side
187,072.75x = 28,828,040,543.44 - Step 5: Solve for x
x = 28,828,040,543.44/187,072.75 - Step 6: Final answer
x = 154,100.70
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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.