Finding the Fourth Proportional to 117,137.58, 175,706.37 and 28,391.09
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Solution
The fourth proportional to 117,137.58, 175,706.37 and 28,391.09 is: 42,586.63
Step by Step Solution
- Step 1: Write the proportion equation
117,137.58 : 175,706.37 = 28,391.09 : x - Step 2: Convert to fraction form
117,137.58/175,706.37 = 28,391.09/x - Step 3: Cross multiply
117,137.58x = 175,706.37 × 28,391.09 - Step 4: Simplify right side
117,137.58x = 4,988,494,343.76 - Step 5: Solve for x
x = 4,988,494,343.76/117,137.58 - Step 6: Final answer
x = 42,586.63
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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.