Finding the Fourth Proportional to 119,313.75, 178,971.71 and 36,207.75
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Solution
The fourth proportional to 119,313.75, 178,971.71 and 36,207.75 is: 54,311.95
Step by Step Solution
- Step 1: Write the proportion equation
119,313.75 : 178,971.71 = 36,207.75 : x - Step 2: Convert to fraction form
119,313.75/178,971.71 = 36,207.75/x - Step 3: Cross multiply
119,313.75x = 178,971.71 × 36,207.75 - Step 4: Simplify right side
119,313.75x = 6,480,162,751.71 - Step 5: Solve for x
x = 6,480,162,751.71/119,313.75 - Step 6: Final answer
x = 54,311.95
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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.