Finding the Fourth Proportional to 137,458.28, 206,129.10 and 48,734.12
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Solution
The fourth proportional to 137,458.28, 206,129.10 and 48,734.12 is: 73,080.50
Step by Step Solution
- Step 1: Write the proportion equation
137,458.28 : 206,129.10 = 48,734.12 : x - Step 2: Convert to fraction form
137,458.28/206,129.10 = 48,734.12/x - Step 3: Cross multiply
137,458.28x = 206,129.10 × 48,734.12 - Step 4: Simplify right side
137,458.28x = 10,045,520,294.89 - Step 5: Solve for x
x = 10,045,520,294.89/137,458.28 - Step 6: Final answer
x = 73,080.50
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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.