Finding the Fourth Proportional to 75,497.20, 113,245.80 and 68,930.80
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Solution
The fourth proportional to 75,497.20, 113,245.80 and 68,930.80 is: 103,396.20
Step by Step Solution
- Step 1: Write the proportion equation
75,497.20 : 113,245.80 = 68,930.80 : x - Step 2: Convert to fraction form
75,497.20/113,245.80 = 68,930.80/x - Step 3: Cross multiply
75,497.20x = 113,245.80 × 68,930.80 - Step 4: Simplify right side
75,497.20x = 7,806,123,590.64 - Step 5: Solve for x
x = 7,806,123,590.64/75,497.20 - Step 6: Final answer
x = 103,396.20
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1.5x scale
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.