Finding the Fourth Proportional to 109,446.20, 164,169.36 and 84,522.68
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Solution
The fourth proportional to 109,446.20, 164,169.36 and 84,522.68 is: 126,784.07
Step by Step Solution
- Step 1: Write the proportion equation
109,446.20 : 164,169.36 = 84,522.68 : x - Step 2: Convert to fraction form
109,446.20/164,169.36 = 84,522.68/x - Step 3: Cross multiply
109,446.20x = 164,169.36 × 84,522.68 - Step 4: Simplify right side
109,446.20x = 13,876,034,281.08 - Step 5: Solve for x
x = 13,876,034,281.08/109,446.20 - Step 6: Final answer
x = 126,784.07
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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.