Finding the Fourth Proportional to 125,861.95, 173,684.41 and 72,109.68
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Solution
The fourth proportional to 125,861.95, 173,684.41 and 72,109.68 is: 99,508.45
Step by Step Solution
- Step 1: Write the proportion equation
125,861.95 : 173,684.41 = 72,109.68 : x - Step 2: Convert to fraction form
125,861.95/173,684.41 = 72,109.68/x - Step 3: Cross multiply
125,861.95x = 173,684.41 × 72,109.68 - Step 4: Simplify right side
125,861.95x = 12,524,327,226.09 - Step 5: Solve for x
x = 12,524,327,226.09/125,861.95 - Step 6: Final answer
x = 99,508.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.