Finding the Fourth Proportional to 115,743.13, 173,435.18 and 80,273.63
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Solution
The fourth proportional to 115,743.13, 173,435.18 and 80,273.63 is: 120,285.95
Step by Step Solution
- Step 1: Write the proportion equation
115,743.13 : 173,435.18 = 80,273.63 : x - Step 2: Convert to fraction form
115,743.13/173,435.18 = 80,273.63/x - Step 3: Cross multiply
115,743.13x = 173,435.18 × 80,273.63 - Step 4: Simplify right side
115,743.13x = 13,922,271,500.52 - Step 5: Solve for x
x = 13,922,271,500.52/115,743.13 - Step 6: Final answer
x = 120,285.95
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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.