Finding the Fourth Proportional to 113,943.10, 170,776.11 and 80,672.74
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Solution
The fourth proportional to 113,943.10, 170,776.11 and 80,672.74 is: 120,911.02
Step by Step Solution
- Step 1: Write the proportion equation
113,943.10 : 170,776.11 = 80,672.74 : x - Step 2: Convert to fraction form
113,943.10/170,776.11 = 80,672.74/x - Step 3: Cross multiply
113,943.10x = 170,776.11 × 80,672.74 - Step 4: Simplify right side
113,943.10x = 13,776,976,720.24 - Step 5: Solve for x
x = 13,776,976,720.24/113,943.10 - Step 6: Final answer
x = 120,911.02
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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.