Finding the Fourth Proportional to 129,861.24, 194,802.98 and 45,614.08
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Solution
The fourth proportional to 129,861.24, 194,802.98 and 45,614.08 is: 68,425.03
Step by Step Solution
- Step 1: Write the proportion equation
129,861.24 : 194,802.98 = 45,614.08 : x - Step 2: Convert to fraction form
129,861.24/194,802.98 = 45,614.08/x - Step 3: Cross multiply
129,861.24x = 194,802.98 × 45,614.08 - Step 4: Simplify right side
129,861.24x = 8,885,758,713.96 - Step 5: Solve for x
x = 8,885,758,713.96/129,861.24 - Step 6: Final answer
x = 68,425.03
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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.