Finding the Fourth Proportional to 136,992.75, 205,505.74 and 48,228.09
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Solution
The fourth proportional to 136,992.75, 205,505.74 and 48,228.09 is: 72,347.98
Step by Step Solution
- Step 1: Write the proportion equation
136,992.75 : 205,505.74 = 48,228.09 : x - Step 2: Convert to fraction form
136,992.75/205,505.74 = 48,228.09/x - Step 3: Cross multiply
136,992.75x = 205,505.74 × 48,228.09 - Step 4: Simplify right side
136,992.75x = 9,911,149,324.24 - Step 5: Solve for x
x = 9,911,149,324.24/136,992.75 - Step 6: Final answer
x = 72,347.98
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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.