Finding the Fourth Proportional to 128,861.60, 193,246.05 and 44,598.88
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Solution
The fourth proportional to 128,861.60, 193,246.05 and 44,598.88 is: 66,882.27
Step by Step Solution
- Step 1: Write the proportion equation
128,861.60 : 193,246.05 = 44,598.88 : x - Step 2: Convert to fraction form
128,861.60/193,246.05 = 44,598.88/x - Step 3: Cross multiply
128,861.60x = 193,246.05 × 44,598.88 - Step 4: Simplify right side
128,861.60x = 8,618,556,428.19 - Step 5: Solve for x
x = 8,618,556,428.19/128,861.60 - Step 6: Final answer
x = 66,882.27
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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.