Finding the Fourth Proportional to 135,907.80, 203,861.70 and 88,668.60
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Solution
The fourth proportional to 135,907.80, 203,861.70 and 88,668.60 is: 133,002.90
Step by Step Solution
- Step 1: Write the proportion equation
135,907.80 : 203,861.70 = 88,668.60 : x - Step 2: Convert to fraction form
135,907.80/203,861.70 = 88,668.60/x - Step 3: Cross multiply
135,907.80x = 203,861.70 × 88,668.60 - Step 4: Simplify right side
135,907.80x = 18,076,131,532.62 - Step 5: Solve for x
x = 18,076,131,532.62/135,907.80 - Step 6: Final answer
x = 133,002.90
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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.