Finding the Fourth Proportional to 112,793.72, 169,211.94 and 45,330.99
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Solution
The fourth proportional to 112,793.72, 169,211.94 and 45,330.99 is: 68,005.07
Step by Step Solution
- Step 1: Write the proportion equation
112,793.72 : 169,211.94 = 45,330.99 : x - Step 2: Convert to fraction form
112,793.72/169,211.94 = 45,330.99/x - Step 3: Cross multiply
112,793.72x = 169,211.94 × 45,330.99 - Step 4: Simplify right side
112,793.72x = 7,670,544,907.30 - Step 5: Solve for x
x = 7,670,544,907.30/112,793.72 - Step 6: Final answer
x = 68,005.07
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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.