Finding the Fourth Proportional to 134,917.20, 202,375.80 and 131,461.20
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Solution
The fourth proportional to 134,917.20, 202,375.80 and 131,461.20 is: 197,191.80
Step by Step Solution
- Step 1: Write the proportion equation
134,917.20 : 202,375.80 = 131,461.20 : x - Step 2: Convert to fraction form
134,917.20/202,375.80 = 131,461.20/x - Step 3: Cross multiply
134,917.20x = 202,375.80 × 131,461.20 - Step 4: Simplify right side
134,917.20x = 26,604,565,518.96 - Step 5: Solve for x
x = 26,604,565,518.96/134,917.20 - Step 6: Final answer
x = 197,191.80
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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.