Finding the Fourth Proportional to 75,906.36, 114,108.64 and 70,425.92
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Solution
The fourth proportional to 75,906.36, 114,108.64 and 70,425.92 is: 105,869.99
Step by Step Solution
- Step 1: Write the proportion equation
75,906.36 : 114,108.64 = 70,425.92 : x - Step 2: Convert to fraction form
75,906.36/114,108.64 = 70,425.92/x - Step 3: Cross multiply
75,906.36x = 114,108.64 × 70,425.92 - Step 4: Simplify right side
75,906.36x = 8,036,205,951.95 - Step 5: Solve for x
x = 8,036,205,951.95/75,906.36 - Step 6: Final answer
x = 105,869.99
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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.