Finding the Fourth Proportional to 125,448.21, 173,132.91 and 87,197.58
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Solution
The fourth proportional to 125,448.21, 173,132.91 and 87,197.58 is: 120,342.66
Step by Step Solution
- Step 1: Write the proportion equation
125,448.21 : 173,132.91 = 87,197.58 : x - Step 2: Convert to fraction form
125,448.21/173,132.91 = 87,197.58/x - Step 3: Cross multiply
125,448.21x = 173,132.91 × 87,197.58 - Step 4: Simplify right side
125,448.21x = 15,096,770,770.36 - Step 5: Solve for x
x = 15,096,770,770.36/125,448.21 - Step 6: Final answer
x = 120,342.66
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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.