Finding the Fourth Proportional to 139,234.17, 192,143.33 and 75,571.99
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Solution
The fourth proportional to 139,234.17, 192,143.33 and 75,571.99 is: 104,289.44
Step by Step Solution
- Step 1: Write the proportion equation
139,234.17 : 192,143.33 = 75,571.99 : x - Step 2: Convert to fraction form
139,234.17/192,143.33 = 75,571.99/x - Step 3: Cross multiply
139,234.17x = 192,143.33 × 75,571.99 - Step 4: Simplify right side
139,234.17x = 14,520,653,813.33 - Step 5: Solve for x
x = 14,520,653,813.33/139,234.17 - Step 6: Final answer
x = 104,289.44
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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.