Finding the Fourth Proportional to 118,591.24, 163,704.60 and 80,403.09
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Solution
The fourth proportional to 118,591.24, 163,704.60 and 80,403.09 is: 110,989.27
Step by Step Solution
- Step 1: Write the proportion equation
118,591.24 : 163,704.60 = 80,403.09 : x - Step 2: Convert to fraction form
118,591.24/163,704.60 = 80,403.09/x - Step 3: Cross multiply
118,591.24x = 163,704.60 × 80,403.09 - Step 4: Simplify right side
118,591.24x = 13,162,355,687.21 - Step 5: Solve for x
x = 13,162,355,687.21/118,591.24 - Step 6: Final answer
x = 110,989.27
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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.