Finding the Fourth Proportional to 103,690.14, 155,534.18 and 47,514.31
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Solution
The fourth proportional to 103,690.14, 155,534.18 and 47,514.31 is: 71,270.99
Step by Step Solution
- Step 1: Write the proportion equation
103,690.14 : 155,534.18 = 47,514.31 : x - Step 2: Convert to fraction form
103,690.14/155,534.18 = 47,514.31/x - Step 3: Cross multiply
103,690.14x = 155,534.18 × 47,514.31 - Step 4: Simplify right side
103,690.14x = 7,390,099,244.12 - Step 5: Solve for x
x = 7,390,099,244.12/103,690.14 - Step 6: Final answer
x = 71,270.99
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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.