Finding the Fourth Proportional to 167,801.09, 231,651.19 and 129,474.52
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Solution
The fourth proportional to 167,801.09, 231,651.19 and 129,474.52 is: 178,740.96
Step by Step Solution
- Step 1: Write the proportion equation
167,801.09 : 231,651.19 = 129,474.52 : x - Step 2: Convert to fraction form
167,801.09/231,651.19 = 129,474.52/x - Step 3: Cross multiply
167,801.09x = 231,651.19 × 129,474.52 - Step 4: Simplify right side
167,801.09x = 29,992,926,215.39 - Step 5: Solve for x
x = 29,992,926,215.39/167,801.09 - Step 6: Final answer
x = 178,740.96
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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.