Finding the Fourth Proportional to 132,381.96, 182,690.42 and 72,765.96
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Solution
The fourth proportional to 132,381.96, 182,690.42 and 72,765.96 is: 100,418.85
Step by Step Solution
- Step 1: Write the proportion equation
132,381.96 : 182,690.42 = 72,765.96 : x - Step 2: Convert to fraction form
132,381.96/182,690.42 = 72,765.96/x - Step 3: Cross multiply
132,381.96x = 182,690.42 × 72,765.96 - Step 4: Simplify right side
132,381.96x = 13,293,643,794.10 - Step 5: Solve for x
x = 13,293,643,794.10/132,381.96 - Step 6: Final answer
x = 100,418.85
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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.