Finding the Fourth Proportional to 106,768.55, 160,163.76 and 36,638.75
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Solution
The fourth proportional to 106,768.55, 160,163.76 and 36,638.75 is: 54,961.88
Step by Step Solution
- Step 1: Write the proportion equation
106,768.55 : 160,163.76 = 36,638.75 : x - Step 2: Convert to fraction form
106,768.55/160,163.76 = 36,638.75/x - Step 3: Cross multiply
106,768.55x = 160,163.76 × 36,638.75 - Step 4: Simplify right side
106,768.55x = 5,868,199,961.70 - Step 5: Solve for x
x = 5,868,199,961.70/106,768.55 - Step 6: Final answer
x = 54,961.88
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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.