Finding the Fourth Proportional to 156,763.88, 216,342.36 and 92,236.44
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Solution
The fourth proportional to 156,763.88, 216,342.36 and 92,236.44 is: 127,291.12
Step by Step Solution
- Step 1: Write the proportion equation
156,763.88 : 216,342.36 = 92,236.44 : x - Step 2: Convert to fraction form
156,763.88/216,342.36 = 92,236.44/x - Step 3: Cross multiply
156,763.88x = 216,342.36 × 92,236.44 - Step 4: Simplify right side
156,763.88x = 19,954,649,107.60 - Step 5: Solve for x
x = 19,954,649,107.60/156,763.88 - Step 6: Final answer
x = 127,291.12
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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.