Finding the Fourth Proportional to 125,342.96, 172,995.36 and 74,383.80
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Solution
The fourth proportional to 125,342.96, 172,995.36 and 74,383.80 is: 102,662.74
Step by Step Solution
- Step 1: Write the proportion equation
125,342.96 : 172,995.36 = 74,383.80 : x - Step 2: Convert to fraction form
125,342.96/172,995.36 = 74,383.80/x - Step 3: Cross multiply
125,342.96x = 172,995.36 × 74,383.80 - Step 4: Simplify right side
125,342.96x = 12,868,052,259.17 - Step 5: Solve for x
x = 12,868,052,259.17/125,342.96 - Step 6: Final answer
x = 102,662.74
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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.