Finding the Fourth Proportional to 140,231.62, 193,518.87 and 76,568.96
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Solution
The fourth proportional to 140,231.62, 193,518.87 and 76,568.96 is: 105,664.75
Step by Step Solution
- Step 1: Write the proportion equation
140,231.62 : 193,518.87 = 76,568.96 : x - Step 2: Convert to fraction form
140,231.62/193,518.87 = 76,568.96/x - Step 3: Cross multiply
140,231.62x = 193,518.87 × 76,568.96 - Step 4: Simplify right side
140,231.62x = 14,817,539,195.78 - Step 5: Solve for x
x = 14,817,539,195.78/140,231.62 - Step 6: Final answer
x = 105,664.75
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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.