Finding the Fourth Proportional to 120,624.10, 180,936.62 and 50,454.19
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Solution
The fourth proportional to 120,624.10, 180,936.62 and 50,454.19 is: 75,681.48
Step by Step Solution
- Step 1: Write the proportion equation
120,624.10 : 180,936.62 = 50,454.19 : x - Step 2: Convert to fraction form
120,624.10/180,936.62 = 50,454.19/x - Step 3: Cross multiply
120,624.10x = 180,936.62 × 50,454.19 - Step 4: Simplify right side
120,624.10x = 9,129,010,603.44 - Step 5: Solve for x
x = 9,129,010,603.44/120,624.10 - Step 6: Final answer
x = 75,681.48
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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.