Finding the Fourth Proportional to 104,880.76, 157,260.38 and 71,640.99
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Solution
The fourth proportional to 104,880.76, 157,260.38 and 71,640.99 is: 107,419.98
Step by Step Solution
- Step 1: Write the proportion equation
104,880.76 : 157,260.38 = 71,640.99 : x - Step 2: Convert to fraction form
104,880.76/157,260.38 = 71,640.99/x - Step 3: Cross multiply
104,880.76x = 157,260.38 × 71,640.99 - Step 4: Simplify right side
104,880.76x = 11,266,288,952.77 - Step 5: Solve for x
x = 11,266,288,952.77/104,880.76 - Step 6: Final answer
x = 107,419.98
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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.