Finding the Fourth Proportional to 135,485.25, 203,184.80 and 126,640.18
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Solution
The fourth proportional to 135,485.25, 203,184.80 and 126,640.18 is: 189,920.01
Step by Step Solution
- Step 1: Write the proportion equation
135,485.25 : 203,184.80 = 126,640.18 : x - Step 2: Convert to fraction form
135,485.25/203,184.80 = 126,640.18/x - Step 3: Cross multiply
135,485.25x = 203,184.80 × 126,640.18 - Step 4: Simplify right side
135,485.25x = 25,731,359,645.26 - Step 5: Solve for x
x = 25,731,359,645.26/135,485.25 - Step 6: Final answer
x = 189,920.01
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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.