Finding the Fourth Proportional to 120,437.28, 180,678.60 and 50,323.68
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Solution
The fourth proportional to 120,437.28, 180,678.60 and 50,323.68 is: 75,495.00
Step by Step Solution
- Step 1: Write the proportion equation
120,437.28 : 180,678.60 = 50,323.68 : x - Step 2: Convert to fraction form
120,437.28/180,678.60 = 50,323.68/x - Step 3: Cross multiply
120,437.28x = 180,678.60 × 50,323.68 - Step 4: Simplify right side
120,437.28x = 9,092,412,049.25 - Step 5: Solve for x
x = 9,092,412,049.25/120,437.28 - Step 6: Final answer
x = 75,495.00
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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.