Finding the Fourth Proportional to 163,073.20, 244,609.80 and 78,873.70
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Solution
The fourth proportional to 163,073.20, 244,609.80 and 78,873.70 is: 118,310.55
Step by Step Solution
- Step 1: Write the proportion equation
163,073.20 : 244,609.80 = 78,873.70 : x - Step 2: Convert to fraction form
163,073.20/244,609.80 = 78,873.70/x - Step 3: Cross multiply
163,073.20x = 244,609.80 × 78,873.70 - Step 4: Simplify right side
163,073.20x = 19,293,279,982.26 - Step 5: Solve for x
x = 19,293,279,982.26/163,073.20 - Step 6: Final answer
x = 118,310.55
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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.