Finding the Fourth Proportional to 103,542.15, 155,329.67 and 33,405.06
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Solution
The fourth proportional to 103,542.15, 155,329.67 and 33,405.06 is: 50,112.90
Step by Step Solution
- Step 1: Write the proportion equation
103,542.15 : 155,329.67 = 33,405.06 : x - Step 2: Convert to fraction form
103,542.15/155,329.67 = 33,405.06/x - Step 3: Cross multiply
103,542.15x = 155,329.67 × 33,405.06 - Step 4: Simplify right side
103,542.15x = 5,188,796,946.13 - Step 5: Solve for x
x = 5,188,796,946.13/103,542.15 - Step 6: Final answer
x = 50,112.90
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1.5x scale
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.