Finding the Fourth Proportional to 133,278.58, 199,819.11 and 80,675.62
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Solution
The fourth proportional to 133,278.58, 199,819.11 and 80,675.62 is: 120,953.65
Step by Step Solution
- Step 1: Write the proportion equation
133,278.58 : 199,819.11 = 80,675.62 : x - Step 2: Convert to fraction form
133,278.58/199,819.11 = 80,675.62/x - Step 3: Cross multiply
133,278.58x = 199,819.11 × 80,675.62 - Step 4: Simplify right side
133,278.58x = 16,120,530,587.10 - Step 5: Solve for x
x = 16,120,530,587.10/133,278.58 - Step 6: Final answer
x = 120,953.65
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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.