Finding the Fourth Proportional to 193,087.09, 266,438.67 and 107,043.66
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Solution
The fourth proportional to 193,087.09, 266,438.67 and 107,043.66 is: 147,708.32
Step by Step Solution
- Step 1: Write the proportion equation
193,087.09 : 266,438.67 = 107,043.66 : x - Step 2: Convert to fraction form
193,087.09/266,438.67 = 107,043.66/x - Step 3: Cross multiply
193,087.09x = 266,438.67 × 107,043.66 - Step 4: Simplify right side
193,087.09x = 28,520,570,000.92 - Step 5: Solve for x
x = 28,520,570,000.92/193,087.09 - Step 6: Final answer
x = 147,708.32
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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.