Finding the Fourth Proportional to 136,520.84, 204,741.12 and 47,757.80
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Solution
The fourth proportional to 136,520.84, 204,741.12 and 47,757.80 is: 71,622.66
Step by Step Solution
- Step 1: Write the proportion equation
136,520.84 : 204,741.12 = 47,757.80 : x - Step 2: Convert to fraction form
136,520.84/204,741.12 = 47,757.80/x - Step 3: Cross multiply
136,520.84x = 204,741.12 × 47,757.80 - Step 4: Simplify right side
136,520.84x = 9,777,985,460.74 - Step 5: Solve for x
x = 9,777,985,460.74/136,520.84 - Step 6: Final answer
x = 71,622.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.