Finding the Fourth Proportional to 125,078.53, 172,634.44 and 114,990.99
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Solution
The fourth proportional to 125,078.53, 172,634.44 and 114,990.99 is: 158,711.54
Step by Step Solution
- Step 1: Write the proportion equation
125,078.53 : 172,634.44 = 114,990.99 : x - Step 2: Convert to fraction form
125,078.53/172,634.44 = 114,990.99/x - Step 3: Cross multiply
125,078.53x = 172,634.44 × 114,990.99 - Step 4: Simplify right side
125,078.53x = 19,851,405,415.52 - Step 5: Solve for x
x = 19,851,405,415.52/125,078.53 - Step 6: Final answer
x = 158,711.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.