Finding the Fourth Proportional to 122,380.10, 168,901.35 and 68,668.29
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Solution
The fourth proportional to 122,380.10, 168,901.35 and 68,668.29 is: 94,771.68
Step by Step Solution
- Step 1: Write the proportion equation
122,380.10 : 168,901.35 = 68,668.29 : x - Step 2: Convert to fraction form
122,380.10/168,901.35 = 68,668.29/x - Step 3: Cross multiply
122,380.10x = 168,901.35 × 68,668.29 - Step 4: Simplify right side
122,380.10x = 11,598,166,883.19 - Step 5: Solve for x
x = 11,598,166,883.19/122,380.10 - Step 6: Final answer
x = 94,771.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.