Finding the Fourth Proportional to 126,039.26, 173,946.14 and 72,336.26
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Solution
The fourth proportional to 126,039.26, 173,946.14 and 72,336.26 is: 99,830.90
Step by Step Solution
- Step 1: Write the proportion equation
126,039.26 : 173,946.14 = 72,336.26 : x - Step 2: Convert to fraction form
126,039.26/173,946.14 = 72,336.26/x - Step 3: Cross multiply
126,039.26x = 173,946.14 × 72,336.26 - Step 4: Simplify right side
126,039.26x = 12,582,611,977.62 - Step 5: Solve for x
x = 12,582,611,977.62/126,039.26 - Step 6: Final answer
x = 99,830.90
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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.