Finding the Fourth Proportional to 100,738.18, 151,140.12 and 48,151.75
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Solution
The fourth proportional to 100,738.18, 151,140.12 and 48,151.75 is: 72,243.33
Step by Step Solution
- Step 1: Write the proportion equation
100,738.18 : 151,140.12 = 48,151.75 : x - Step 2: Convert to fraction form
100,738.18/151,140.12 = 48,151.75/x - Step 3: Cross multiply
100,738.18x = 151,140.12 × 48,151.75 - Step 4: Simplify right side
100,738.18x = 7,277,661,273.21 - Step 5: Solve for x
x = 7,277,661,273.21/100,738.18 - Step 6: Final answer
x = 72,243.33
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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.