Finding the Fourth Proportional to 151,131.92, 208,558.68 and 87,468.44
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Solution
The fourth proportional to 151,131.92, 208,558.68 and 87,468.44 is: 120,704.50
Step by Step Solution
- Step 1: Write the proportion equation
151,131.92 : 208,558.68 = 87,468.44 : x - Step 2: Convert to fraction form
151,131.92/208,558.68 = 87,468.44/x - Step 3: Cross multiply
151,131.92x = 208,558.68 × 87,468.44 - Step 4: Simplify right side
151,131.92x = 18,242,302,388.06 - Step 5: Solve for x
x = 18,242,302,388.06/151,131.92 - Step 6: Final answer
x = 120,704.50
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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.