Finding the Fourth Proportional to 163,902.80, 245,854.20 and 100,917.20
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Solution
The fourth proportional to 163,902.80, 245,854.20 and 100,917.20 is: 151,375.80
Step by Step Solution
- Step 1: Write the proportion equation
163,902.80 : 245,854.20 = 100,917.20 : x - Step 2: Convert to fraction form
163,902.80/245,854.20 = 100,917.20/x - Step 3: Cross multiply
163,902.80x = 245,854.20 × 100,917.20 - Step 4: Simplify right side
163,902.80x = 24,810,917,472.24 - Step 5: Solve for x
x = 24,810,917,472.24/163,902.80 - Step 6: Final answer
x = 151,375.80
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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.