Finding the Fourth Proportional to 139,351.08, 192,306.24 and 75,689.94
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Solution
The fourth proportional to 139,351.08, 192,306.24 and 75,689.94 is: 104,453.07
Step by Step Solution
- Step 1: Write the proportion equation
139,351.08 : 192,306.24 = 75,689.94 : x - Step 2: Convert to fraction form
139,351.08/192,306.24 = 75,689.94/x - Step 3: Cross multiply
139,351.08x = 192,306.24 × 75,689.94 - Step 4: Simplify right side
139,351.08x = 14,555,647,767.23 - Step 5: Solve for x
x = 14,555,647,767.23/139,351.08 - Step 6: Final answer
x = 104,453.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.