Finding the Fourth Proportional to 126,977.49, 190,379.97 and 76,262.31
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Solution
The fourth proportional to 126,977.49, 190,379.97 and 76,262.31 is: 114,341.65
Step by Step Solution
- Step 1: Write the proportion equation
126,977.49 : 190,379.97 = 76,262.31 : x - Step 2: Convert to fraction form
126,977.49/190,379.97 = 76,262.31/x - Step 3: Cross multiply
126,977.49x = 190,379.97 × 76,262.31 - Step 4: Simplify right side
126,977.49x = 14,518,816,289.93 - Step 5: Solve for x
x = 14,518,816,289.93/126,977.49 - Step 6: Final answer
x = 114,341.65
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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.