Finding the Fourth Proportional to 133,229.44, 183,776.18 and 87,891.32
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Solution
The fourth proportional to 133,229.44, 183,776.18 and 87,891.32 is: 121,236.95
Step by Step Solution
- Step 1: Write the proportion equation
133,229.44 : 183,776.18 = 87,891.32 : x - Step 2: Convert to fraction form
133,229.44/183,776.18 = 87,891.32/x - Step 3: Cross multiply
133,229.44x = 183,776.18 × 87,891.32 - Step 4: Simplify right side
133,229.44x = 16,152,331,044.76 - Step 5: Solve for x
x = 16,152,331,044.76/133,229.44 - Step 6: Final answer
x = 121,236.95
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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.