Finding the Fourth Proportional to 120,506.70, 180,582.36 and 67,125.12
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Solution
The fourth proportional to 120,506.70, 180,582.36 and 67,125.12 is: 100,588.70
Step by Step Solution
- Step 1: Write the proportion equation
120,506.70 : 180,582.36 = 67,125.12 : x - Step 2: Convert to fraction form
120,506.70/180,582.36 = 67,125.12/x - Step 3: Cross multiply
120,506.70x = 180,582.36 × 67,125.12 - Step 4: Simplify right side
120,506.70x = 12,121,612,584.88 - Step 5: Solve for x
x = 12,121,612,584.88/120,506.70 - Step 6: Final answer
x = 100,588.70
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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.