Finding the Fourth Proportional to 142,305.05, 213,457.58 and 53,578.46
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Solution
The fourth proportional to 142,305.05, 213,457.58 and 53,578.46 is: 80,367.69
Step by Step Solution
- Step 1: Write the proportion equation
142,305.05 : 213,457.58 = 53,578.46 : x - Step 2: Convert to fraction form
142,305.05/213,457.58 = 53,578.46/x - Step 3: Cross multiply
142,305.05x = 213,457.58 × 53,578.46 - Step 4: Simplify right side
142,305.05x = 11,436,728,411.73 - Step 5: Solve for x
x = 11,436,728,411.73/142,305.05 - Step 6: Final answer
x = 80,367.69
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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.