Finding the Fourth Proportional to 115,405.20, 173,107.80 and 92,854.80
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Solution
The fourth proportional to 115,405.20, 173,107.80 and 92,854.80 is: 139,282.20
Step by Step Solution
- Step 1: Write the proportion equation
115,405.20 : 173,107.80 = 92,854.80 : x - Step 2: Convert to fraction form
115,405.20/173,107.80 = 92,854.80/x - Step 3: Cross multiply
115,405.20x = 173,107.80 × 92,854.80 - Step 4: Simplify right side
115,405.20x = 16,073,890,147.44 - Step 5: Solve for x
x = 16,073,890,147.44/115,405.20 - Step 6: Final answer
x = 139,282.20
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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.