Finding the Fourth Proportional to 87,497.80, 131,246.70 and 65,465.80
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Solution
The fourth proportional to 87,497.80, 131,246.70 and 65,465.80 is: 98,198.70
Step by Step Solution
- Step 1: Write the proportion equation
87,497.80 : 131,246.70 = 65,465.80 : x - Step 2: Convert to fraction form
87,497.80/131,246.70 = 65,465.80/x - Step 3: Cross multiply
87,497.80x = 131,246.70 × 65,465.80 - Step 4: Simplify right side
87,497.80x = 8,592,170,212.86 - Step 5: Solve for x
x = 8,592,170,212.86/87,497.80 - Step 6: Final answer
x = 98,198.70
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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.