Finding the Fourth Proportional to 125,701.62, 173,457.96 and 74,010.54
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Solution
The fourth proportional to 125,701.62, 173,457.96 and 74,010.54 is: 102,128.50
Step by Step Solution
- Step 1: Write the proportion equation
125,701.62 : 173,457.96 = 74,010.54 : x - Step 2: Convert to fraction form
125,701.62/173,457.96 = 74,010.54/x - Step 3: Cross multiply
125,701.62x = 173,457.96 × 74,010.54 - Step 4: Simplify right side
125,701.62x = 12,837,717,286.90 - Step 5: Solve for x
x = 12,837,717,286.90/125,701.62 - Step 6: Final answer
x = 102,128.50
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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.