Finding the Fourth Proportional to 135,381.44, 186,825.12 and 75,765.44
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Solution
The fourth proportional to 135,381.44, 186,825.12 and 75,765.44 is: 104,555.60
Step by Step Solution
- Step 1: Write the proportion equation
135,381.44 : 186,825.12 = 75,765.44 : x - Step 2: Convert to fraction form
135,381.44/186,825.12 = 75,765.44/x - Step 3: Cross multiply
135,381.44x = 186,825.12 × 75,765.44 - Step 4: Simplify right side
135,381.44x = 14,154,887,419.85 - Step 5: Solve for x
x = 14,154,887,419.85/135,381.44 - Step 6: Final answer
x = 104,555.60
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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.