Finding the Fourth Proportional to 125,992.98, 188,984.74 and 31,223.44
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Solution
The fourth proportional to 125,992.98, 188,984.74 and 31,223.44 is: 46,833.99
Step by Step Solution
- Step 1: Write the proportion equation
125,992.98 : 188,984.74 = 31,223.44 : x - Step 2: Convert to fraction form
125,992.98/188,984.74 = 31,223.44/x - Step 3: Cross multiply
125,992.98x = 188,984.74 × 31,223.44 - Step 4: Simplify right side
125,992.98x = 5,900,753,690.31 - Step 5: Solve for x
x = 5,900,753,690.31/125,992.98 - Step 6: Final answer
x = 46,833.99
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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.