Finding the Fourth Proportional to 115,785.75, 173,678.63 and 28,233.75
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Solution
The fourth proportional to 115,785.75, 173,678.63 and 28,233.75 is: 42,350.63
Step by Step Solution
- Step 1: Write the proportion equation
115,785.75 : 173,678.63 = 28,233.75 : x - Step 2: Convert to fraction form
115,785.75/173,678.63 = 28,233.75/x - Step 3: Cross multiply
115,785.75x = 173,678.63 × 28,233.75 - Step 4: Simplify right side
115,785.75x = 4,903,599,019.76 - Step 5: Solve for x
x = 4,903,599,019.76/115,785.75 - Step 6: Final answer
x = 42,350.63
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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.