Finding the Fourth Proportional to 170,135.12, 255,136.44 and 70,311.44
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Solution
The fourth proportional to 170,135.12, 255,136.44 and 70,311.44 is: 105,439.79
Step by Step Solution
- Step 1: Write the proportion equation
170,135.12 : 255,136.44 = 70,311.44 : x - Step 2: Convert to fraction form
170,135.12/255,136.44 = 70,311.44/x - Step 3: Cross multiply
170,135.12x = 255,136.44 × 70,311.44 - Step 4: Simplify right side
170,135.12x = 17,939,010,492.87 - Step 5: Solve for x
x = 17,939,010,492.87/170,135.12 - Step 6: Final answer
x = 105,439.79
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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.