Finding the Fourth Proportional to 168,706.80, 252,768.60 and 79,768.80
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Solution
The fourth proportional to 168,706.80, 252,768.60 and 79,768.80 is: 119,515.32
Step by Step Solution
- Step 1: Write the proportion equation
168,706.80 : 252,768.60 = 79,768.80 : x - Step 2: Convert to fraction form
168,706.80/252,768.60 = 79,768.80/x - Step 3: Cross multiply
168,706.80x = 252,768.60 × 79,768.80 - Step 4: Simplify right side
168,706.80x = 20,163,047,899.68 - Step 5: Solve for x
x = 20,163,047,899.68/168,706.80 - Step 6: Final answer
x = 119,515.32
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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.