Finding the Fourth Proportional to 135,669.12, 203,452.56 and 56,788.80
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Solution
The fourth proportional to 135,669.12, 203,452.56 and 56,788.80 is: 85,161.80
Step by Step Solution
- Step 1: Write the proportion equation
135,669.12 : 203,452.56 = 56,788.80 : x - Step 2: Convert to fraction form
135,669.12/203,452.56 = 56,788.80/x - Step 3: Cross multiply
135,669.12x = 203,452.56 × 56,788.80 - Step 4: Simplify right side
135,669.12x = 11,553,826,739.33 - Step 5: Solve for x
x = 11,553,826,739.33/135,669.12 - Step 6: Final answer
x = 85,161.80
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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.