Finding the Fourth Proportional to 119,901.44, 179,765.76 and 74,938.88
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Solution
The fourth proportional to 119,901.44, 179,765.76 and 74,938.88 is: 112,354.32
Step by Step Solution
- Step 1: Write the proportion equation
119,901.44 : 179,765.76 = 74,938.88 : x - Step 2: Convert to fraction form
119,901.44/179,765.76 = 74,938.88/x - Step 3: Cross multiply
119,901.44x = 179,765.76 × 74,938.88 - Step 4: Simplify right side
119,901.44x = 13,471,444,716.75 - Step 5: Solve for x
x = 13,471,444,716.75/119,901.44 - Step 6: Final answer
x = 112,354.32
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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.