Finding the Fourth Proportional to 186,419.21, 257,170.56 and 126,010.94
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Solution
The fourth proportional to 186,419.21, 257,170.56 and 126,010.94 is: 173,835.65
Step by Step Solution
- Step 1: Write the proportion equation
186,419.21 : 257,170.56 = 126,010.94 : x - Step 2: Convert to fraction form
186,419.21/257,170.56 = 126,010.94/x - Step 3: Cross multiply
186,419.21x = 257,170.56 × 126,010.94 - Step 4: Simplify right side
186,419.21x = 32,406,304,005.93 - Step 5: Solve for x
x = 32,406,304,005.93/186,419.21 - Step 6: Final answer
x = 173,835.65
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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.