Finding the Fourth Proportional to 115,550.40, 173,163.60 and 91,898.40
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Solution
The fourth proportional to 115,550.40, 173,163.60 and 91,898.40 is: 137,718.76
Step by Step Solution
- Step 1: Write the proportion equation
115,550.40 : 173,163.60 = 91,898.40 : x - Step 2: Convert to fraction form
115,550.40/173,163.60 = 91,898.40/x - Step 3: Cross multiply
115,550.40x = 173,163.60 × 91,898.40 - Step 4: Simplify right side
115,550.40x = 15,913,457,778.24 - Step 5: Solve for x
x = 15,913,457,778.24/115,550.40 - Step 6: Final answer
x = 137,718.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.