Finding the Fourth Proportional to 160,779.38, 221,951.73 and 107,153.78
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Solution
The fourth proportional to 160,779.38, 221,951.73 and 107,153.78 is: 147,922.99
Step by Step Solution
- Step 1: Write the proportion equation
160,779.38 : 221,951.73 = 107,153.78 : x - Step 2: Convert to fraction form
160,779.38/221,951.73 = 107,153.78/x - Step 3: Cross multiply
160,779.38x = 221,951.73 × 107,153.78 - Step 4: Simplify right side
160,779.38x = 23,782,966,847.04 - Step 5: Solve for x
x = 23,782,966,847.04/160,779.38 - Step 6: Final answer
x = 147,922.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.