Finding the Fourth Proportional to 102,246.80, 153,391.80 and 31,163.60
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Solution
The fourth proportional to 102,246.80, 153,391.80 and 31,163.60 is: 46,751.98
Step by Step Solution
- Step 1: Write the proportion equation
102,246.80 : 153,391.80 = 31,163.60 : x - Step 2: Convert to fraction form
102,246.80/153,391.80 = 31,163.60/x - Step 3: Cross multiply
102,246.80x = 153,391.80 × 31,163.60 - Step 4: Simplify right side
102,246.80x = 4,780,240,698.48 - Step 5: Solve for x
x = 4,780,240,698.48/102,246.80 - Step 6: Final answer
x = 46,751.98
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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.