Finding the Fourth Proportional to 125,986.72, 173,861.68 and 69,398.09
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Solution
The fourth proportional to 125,986.72, 173,861.68 and 69,398.09 is: 95,769.37
Step by Step Solution
- Step 1: Write the proportion equation
125,986.72 : 173,861.68 = 69,398.09 : x - Step 2: Convert to fraction form
125,986.72/173,861.68 = 69,398.09/x - Step 3: Cross multiply
125,986.72x = 173,861.68 × 69,398.09 - Step 4: Simplify right side
125,986.72x = 12,065,668,777.35 - Step 5: Solve for x
x = 12,065,668,777.35/125,986.72 - Step 6: Final answer
x = 95,769.37
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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.