Finding the Fourth Proportional to 115,336.18, 159,163.95 and 65,035.18
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Solution
The fourth proportional to 115,336.18, 159,163.95 and 65,035.18 is: 89,748.56
Step by Step Solution
- Step 1: Write the proportion equation
115,336.18 : 159,163.95 = 65,035.18 : x - Step 2: Convert to fraction form
115,336.18/159,163.95 = 65,035.18/x - Step 3: Cross multiply
115,336.18x = 159,163.95 × 65,035.18 - Step 4: Simplify right side
115,336.18x = 10,351,256,137.76 - Step 5: Solve for x
x = 10,351,256,137.76/115,336.18 - Step 6: Final answer
x = 89,748.56
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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.