Finding the Fourth Proportional to 140,163.40, 193,487.70 and 94,907.08
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Solution
The fourth proportional to 140,163.40, 193,487.70 and 94,907.08 is: 131,013.89
Step by Step Solution
- Step 1: Write the proportion equation
140,163.40 : 193,487.70 = 94,907.08 : x - Step 2: Convert to fraction form
140,163.40/193,487.70 = 94,907.08/x - Step 3: Cross multiply
140,163.40x = 193,487.70 × 94,907.08 - Step 4: Simplify right side
140,163.40x = 18,363,352,622.92 - Step 5: Solve for x
x = 18,363,352,622.92/140,163.40 - Step 6: Final answer
x = 131,013.89
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1.5x scale
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.