Finding the Fourth Proportional to 163,609.70, 245,414.55 and 88,765.70
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Solution
The fourth proportional to 163,609.70, 245,414.55 and 88,765.70 is: 133,148.55
Step by Step Solution
- Step 1: Write the proportion equation
163,609.70 : 245,414.55 = 88,765.70 : x - Step 2: Convert to fraction form
163,609.70/245,414.55 = 88,765.70/x - Step 3: Cross multiply
163,609.70x = 245,414.55 × 88,765.70 - Step 4: Simplify right side
163,609.70x = 21,784,394,320.94 - Step 5: Solve for x
x = 21,784,394,320.94/163,609.70 - Step 6: Final answer
x = 133,148.55
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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.