Finding the Fourth Proportional to 155,696.09, 214,861.27 and 87,713.88
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Solution
The fourth proportional to 155,696.09, 214,861.27 and 87,713.88 is: 121,045.53
Step by Step Solution
- Step 1: Write the proportion equation
155,696.09 : 214,861.27 = 87,713.88 : x - Step 2: Convert to fraction form
155,696.09/214,861.27 = 87,713.88/x - Step 3: Cross multiply
155,696.09x = 214,861.27 × 87,713.88 - Step 4: Simplify right side
155,696.09x = 18,846,315,434.14 - Step 5: Solve for x
x = 18,846,315,434.14/155,696.09 - Step 6: Final answer
x = 121,045.53
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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.