Finding the Fourth Proportional to 139,462.62, 209,027.88 and 72,884.94
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Solution
The fourth proportional to 139,462.62, 209,027.88 and 72,884.94 is: 109,240.63
Step by Step Solution
- Step 1: Write the proportion equation
139,462.62 : 209,027.88 = 72,884.94 : x - Step 2: Convert to fraction form
139,462.62/209,027.88 = 72,884.94/x - Step 3: Cross multiply
139,462.62x = 209,027.88 × 72,884.94 - Step 4: Simplify right side
139,462.62x = 15,234,984,492.13 - Step 5: Solve for x
x = 15,234,984,492.13/139,462.62 - Step 6: Final answer
x = 109,240.63
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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.