Finding the Fourth Proportional to 103,778.31, 155,716.68 and 61,741.44
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Solution
The fourth proportional to 103,778.31, 155,716.68 and 61,741.44 is: 92,641.43
Step by Step Solution
- Step 1: Write the proportion equation
103,778.31 : 155,716.68 = 61,741.44 : x - Step 2: Convert to fraction form
103,778.31/155,716.68 = 61,741.44/x - Step 3: Cross multiply
103,778.31x = 155,716.68 × 61,741.44 - Step 4: Simplify right side
103,778.31x = 9,614,171,590.24 - Step 5: Solve for x
x = 9,614,171,590.24/103,778.31 - Step 6: Final answer
x = 92,641.43
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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.