Finding the Fourth Proportional to 130,109.07, 194,860.47 and 126,517.70
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Solution
The fourth proportional to 130,109.07, 194,860.47 and 126,517.70 is: 189,481.78
Step by Step Solution
- Step 1: Write the proportion equation
130,109.07 : 194,860.47 = 126,517.70 : x - Step 2: Convert to fraction form
130,109.07/194,860.47 = 126,517.70/x - Step 3: Cross multiply
130,109.07x = 194,860.47 × 126,517.70 - Step 4: Simplify right side
130,109.07x = 24,653,297,639.16 - Step 5: Solve for x
x = 24,653,297,639.16/130,109.07 - Step 6: Final answer
x = 189,481.78
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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.