Finding the Fourth Proportional to 133,149.62, 183,745.53 and 72,720.26
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Solution
The fourth proportional to 133,149.62, 183,745.53 and 72,720.26 is: 100,353.44
Step by Step Solution
- Step 1: Write the proportion equation
133,149.62 : 183,745.53 = 72,720.26 : x - Step 2: Convert to fraction form
133,149.62/183,745.53 = 72,720.26/x - Step 3: Cross multiply
133,149.62x = 183,745.53 × 72,720.26 - Step 4: Simplify right side
133,149.62x = 13,362,022,715.44 - Step 5: Solve for x
x = 13,362,022,715.44/133,149.62 - Step 6: Final answer
x = 100,353.44
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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.