Finding the Fourth Proportional to 158,814.06, 219,163.84 and 87,198.72
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Solution
The fourth proportional to 158,814.06, 219,163.84 and 87,198.72 is: 120,334.47
Step by Step Solution
- Step 1: Write the proportion equation
158,814.06 : 219,163.84 = 87,198.72 : x - Step 2: Convert to fraction form
158,814.06/219,163.84 = 87,198.72/x - Step 3: Cross multiply
158,814.06x = 219,163.84 × 87,198.72 - Step 4: Simplify right side
158,814.06x = 19,110,806,511.22 - Step 5: Solve for x
x = 19,110,806,511.22/158,814.06 - Step 6: Final answer
x = 120,334.47
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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.