Finding the Fourth Proportional to 119,765.46, 165,270.74 and 68,742.75
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Solution
The fourth proportional to 119,765.46, 165,270.74 and 68,742.75 is: 94,861.78
Step by Step Solution
- Step 1: Write the proportion equation
119,765.46 : 165,270.74 = 68,742.75 : x - Step 2: Convert to fraction form
119,765.46/165,270.74 = 68,742.75/x - Step 3: Cross multiply
119,765.46x = 165,270.74 × 68,742.75 - Step 4: Simplify right side
119,765.46x = 11,361,164,818.42 - Step 5: Solve for x
x = 11,361,164,818.42/119,765.46 - Step 6: Final answer
x = 94,861.78
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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.