Finding the Fourth Proportional to 140,391.64, 193,252.26 and 122,455.40
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Solution
The fourth proportional to 140,391.64, 193,252.26 and 122,455.40 is: 168,562.62
Step by Step Solution
- Step 1: Write the proportion equation
140,391.64 : 193,252.26 = 122,455.40 : x - Step 2: Convert to fraction form
140,391.64/193,252.26 = 122,455.40/x - Step 3: Cross multiply
140,391.64x = 193,252.26 × 122,455.40 - Step 4: Simplify right side
140,391.64x = 23,664,782,799.20 - Step 5: Solve for x
x = 23,664,782,799.20/140,391.64 - Step 6: Final answer
x = 168,562.62
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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.