Finding the Fourth Proportional to 135,909.30, 203,912.55 and 57,047.70
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Solution
The fourth proportional to 135,909.30, 203,912.55 and 57,047.70 is: 85,591.95
Step by Step Solution
- Step 1: Write the proportion equation
135,909.30 : 203,912.55 = 57,047.70 : x - Step 2: Convert to fraction form
135,909.30/203,912.55 = 57,047.70/x - Step 3: Cross multiply
135,909.30x = 203,912.55 × 57,047.70 - Step 4: Simplify right side
135,909.30x = 11,632,741,978.64 - Step 5: Solve for x
x = 11,632,741,978.64/135,909.30 - Step 6: Final answer
x = 85,591.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.