Finding the Fourth Proportional to 139,541.84, 192,566.76 and 75,879.68
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Solution
The fourth proportional to 139,541.84, 192,566.76 and 75,879.68 is: 104,713.43
Step by Step Solution
- Step 1: Write the proportion equation
139,541.84 : 192,566.76 = 75,879.68 : x - Step 2: Convert to fraction form
139,541.84/192,566.76 = 75,879.68/x - Step 3: Cross multiply
139,541.84x = 192,566.76 × 75,879.68 - Step 4: Simplify right side
139,541.84x = 14,611,904,127.44 - Step 5: Solve for x
x = 14,611,904,127.44/139,541.84 - Step 6: Final answer
x = 104,713.43
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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.