Finding the Fourth Proportional to 137,959.76, 206,933.88 and 39,463.76
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Solution
The fourth proportional to 137,959.76, 206,933.88 and 39,463.76 is: 59,193.99
Step by Step Solution
- Step 1: Write the proportion equation
137,959.76 : 206,933.88 = 39,463.76 : x - Step 2: Convert to fraction form
137,959.76/206,933.88 = 39,463.76/x - Step 3: Cross multiply
137,959.76x = 206,933.88 × 39,463.76 - Step 4: Simplify right side
137,959.76x = 8,166,388,976.19 - Step 5: Solve for x
x = 8,166,388,976.19/137,959.76 - Step 6: Final answer
x = 59,193.99
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1.5x scale
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.