Finding the Fourth Proportional to 116,313.14, 160,573.08 and 78,272.70
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Solution
The fourth proportional to 116,313.14, 160,573.08 and 78,272.70 is: 108,057.34
Step by Step Solution
- Step 1: Write the proportion equation
116,313.14 : 160,573.08 = 78,272.70 : x - Step 2: Convert to fraction form
116,313.14/160,573.08 = 78,272.70/x - Step 3: Cross multiply
116,313.14x = 160,573.08 × 78,272.70 - Step 4: Simplify right side
116,313.14x = 12,568,488,518.92 - Step 5: Solve for x
x = 12,568,488,518.92/116,313.14 - Step 6: Final answer
x = 108,057.34
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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.