Finding the Fourth Proportional to 122,120.61, 183,207.21 and 37,879.08
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Solution
The fourth proportional to 122,120.61, 183,207.21 and 37,879.08 is: 56,826.78
Step by Step Solution
- Step 1: Write the proportion equation
122,120.61 : 183,207.21 = 37,879.08 : x - Step 2: Convert to fraction form
122,120.61/183,207.21 = 37,879.08/x - Step 3: Cross multiply
122,120.61x = 183,207.21 × 37,879.08 - Step 4: Simplify right side
122,120.61x = 6,939,720,564.17 - Step 5: Solve for x
x = 6,939,720,564.17/122,120.61 - Step 6: Final answer
x = 56,826.78
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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.