Finding the Fourth Proportional to 139,208.20, 192,107.43 and 75,545.99
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Solution
The fourth proportional to 139,208.20, 192,107.43 and 75,545.99 is: 104,253.53
Step by Step Solution
- Step 1: Write the proportion equation
139,208.20 : 192,107.43 = 75,545.99 : x - Step 2: Convert to fraction form
139,208.20/192,107.43 = 75,545.99/x - Step 3: Cross multiply
139,208.20x = 192,107.43 × 75,545.99 - Step 4: Simplify right side
139,208.20x = 14,512,945,985.71 - Step 5: Solve for x
x = 14,512,945,985.71/139,208.20 - Step 6: Final answer
x = 104,253.53
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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.