Finding the Fourth Proportional to 154,108.44, 212,639.58 and 87,027.48
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Solution
The fourth proportional to 154,108.44, 212,639.58 and 87,027.48 is: 120,080.94
Step by Step Solution
- Step 1: Write the proportion equation
154,108.44 : 212,639.58 = 87,027.48 : x - Step 2: Convert to fraction form
154,108.44/212,639.58 = 87,027.48/x - Step 3: Cross multiply
154,108.44x = 212,639.58 × 87,027.48 - Step 4: Simplify right side
154,108.44x = 18,505,486,795.66 - Step 5: Solve for x
x = 18,505,486,795.66/154,108.44 - Step 6: Final answer
x = 120,080.94
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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.