Finding the Fourth Proportional to 158,716.08, 219,028.56 and 87,096.68
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Solution
The fourth proportional to 158,716.08, 219,028.56 and 87,096.68 is: 120,193.62
Step by Step Solution
- Step 1: Write the proportion equation
158,716.08 : 219,028.56 = 87,096.68 : x - Step 2: Convert to fraction form
158,716.08/219,028.56 = 87,096.68/x - Step 3: Cross multiply
158,716.08x = 219,028.56 × 87,096.68 - Step 4: Simplify right side
158,716.08x = 19,076,660,401.18 - Step 5: Solve for x
x = 19,076,660,401.18/158,716.08 - Step 6: Final answer
x = 120,193.62
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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.