Finding the Fourth Proportional to 128,872.23, 193,261.99 and 44,609.50
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Solution
The fourth proportional to 128,872.23, 193,261.99 and 44,609.50 is: 66,898.20
Step by Step Solution
- Step 1: Write the proportion equation
128,872.23 : 193,261.99 = 44,609.50 : x - Step 2: Convert to fraction form
128,872.23/193,261.99 = 44,609.50/x - Step 3: Cross multiply
128,872.23x = 193,261.99 × 44,609.50 - Step 4: Simplify right side
128,872.23x = 8,621,320,742.91 - Step 5: Solve for x
x = 8,621,320,742.91/128,872.23 - Step 6: Final answer
x = 66,898.20
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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.