Finding the Fourth Proportional to 115,676.18, 159,630.13 and 63,995.19
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Solution
The fourth proportional to 115,676.18, 159,630.13 and 63,995.19 is: 88,311.70
Step by Step Solution
- Step 1: Write the proportion equation
115,676.18 : 159,630.13 = 63,995.19 : x - Step 2: Convert to fraction form
115,676.18/159,630.13 = 63,995.19/x - Step 3: Cross multiply
115,676.18x = 159,630.13 × 63,995.19 - Step 4: Simplify right side
115,676.18x = 10,215,560,499.07 - Step 5: Solve for x
x = 10,215,560,499.07/115,676.18 - Step 6: Final answer
x = 88,311.70
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1.5x scale
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.