Finding the Fourth Proportional to 131,405.10, 197,107.65 and 115,853.10
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Solution
The fourth proportional to 131,405.10, 197,107.65 and 115,853.10 is: 173,779.65
Step by Step Solution
- Step 1: Write the proportion equation
131,405.10 : 197,107.65 = 115,853.10 : x - Step 2: Convert to fraction form
131,405.10/197,107.65 = 115,853.10/x - Step 3: Cross multiply
131,405.10x = 197,107.65 × 115,853.10 - Step 4: Simplify right side
131,405.10x = 22,835,532,286.22 - Step 5: Solve for x
x = 22,835,532,286.22/131,405.10 - Step 6: Final answer
x = 173,779.65
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1.5x scale
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.