Finding the Fourth Proportional to 120,508.05, 180,782.19 and 41,601.09
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Solution
The fourth proportional to 120,508.05, 180,782.19 and 41,601.09 is: 62,408.58
Step by Step Solution
- Step 1: Write the proportion equation
120,508.05 : 180,782.19 = 41,601.09 : x - Step 2: Convert to fraction form
120,508.05/180,782.19 = 41,601.09/x - Step 3: Cross multiply
120,508.05x = 180,782.19 × 41,601.09 - Step 4: Simplify right side
120,508.05x = 7,520,736,156.59 - Step 5: Solve for x
x = 7,520,736,156.59/120,508.05 - Step 6: Final answer
x = 62,408.58
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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.