Finding the Fourth Proportional to 147,641.62, 203,745.36 and 80,573.62
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Solution
The fourth proportional to 147,641.62, 203,745.36 and 80,573.62 is: 111,191.55
Step by Step Solution
- Step 1: Write the proportion equation
147,641.62 : 203,745.36 = 80,573.62 : x - Step 2: Convert to fraction form
147,641.62/203,745.36 = 80,573.62/x - Step 3: Cross multiply
147,641.62x = 203,745.36 × 80,573.62 - Step 4: Simplify right side
147,641.62x = 16,416,500,194.68 - Step 5: Solve for x
x = 16,416,500,194.68/147,641.62 - Step 6: Final answer
x = 111,191.55
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1.5x scale
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.