Finding the Fourth Proportional to 75,177.20, 112,794.60 and 73,996.40
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Solution
The fourth proportional to 75,177.20, 112,794.60 and 73,996.40 is: 111,022.95
Step by Step Solution
- Step 1: Write the proportion equation
75,177.20 : 112,794.60 = 73,996.40 : x - Step 2: Convert to fraction form
75,177.20/112,794.60 = 73,996.40/x - Step 3: Cross multiply
75,177.20x = 112,794.60 × 73,996.40 - Step 4: Simplify right side
75,177.20x = 8,346,394,339.44 - Step 5: Solve for x
x = 8,346,394,339.44/75,177.20 - Step 6: Final answer
x = 111,022.95
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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.