Finding the Fourth Proportional to 162,770.80, 243,961.80 and 68,000.80
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Solution
The fourth proportional to 162,770.80, 243,961.80 and 68,000.80 is: 101,919.99
Step by Step Solution
- Step 1: Write the proportion equation
162,770.80 : 243,961.80 = 68,000.80 : x - Step 2: Convert to fraction form
162,770.80/243,961.80 = 68,000.80/x - Step 3: Cross multiply
162,770.80x = 243,961.80 × 68,000.80 - Step 4: Simplify right side
162,770.80x = 16,589,597,569.44 - Step 5: Solve for x
x = 16,589,597,569.44/162,770.80 - Step 6: Final answer
x = 101,919.99
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1.5x scale
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.