Finding the Fourth Proportional to 135,763.58, 203,579.61 and 79,622.08
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Solution
The fourth proportional to 135,763.58, 203,579.61 and 79,622.08 is: 119,394.55
Step by Step Solution
- Step 1: Write the proportion equation
135,763.58 : 203,579.61 = 79,622.08 : x - Step 2: Convert to fraction form
135,763.58/203,579.61 = 79,622.08/x - Step 3: Cross multiply
135,763.58x = 203,579.61 × 79,622.08 - Step 4: Simplify right side
135,763.58x = 16,209,431,993.79 - Step 5: Solve for x
x = 16,209,431,993.79/135,763.58 - Step 6: Final answer
x = 119,394.55
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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.