Finding the Fourth Proportional to 112,910.61, 169,365.99 and 28,677.09
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Solution
The fourth proportional to 112,910.61, 169,365.99 and 28,677.09 is: 43,015.65
Step by Step Solution
- Step 1: Write the proportion equation
112,910.61 : 169,365.99 = 28,677.09 : x - Step 2: Convert to fraction form
112,910.61/169,365.99 = 28,677.09/x - Step 3: Cross multiply
112,910.61x = 169,365.99 × 28,677.09 - Step 4: Simplify right side
112,910.61x = 4,856,923,738.17 - Step 5: Solve for x
x = 4,856,923,738.17/112,910.61 - Step 6: Final answer
x = 43,015.65
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1.5x scale
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.