Finding the Fourth Proportional to 125,247.21, 172,837.58 and 71,531.12
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Solution
The fourth proportional to 125,247.21, 172,837.58 and 71,531.12 is: 98,710.90
Step by Step Solution
- Step 1: Write the proportion equation
125,247.21 : 172,837.58 = 71,531.12 : x - Step 2: Convert to fraction form
125,247.21/172,837.58 = 71,531.12/x - Step 3: Cross multiply
125,247.21x = 172,837.58 × 71,531.12 - Step 4: Simplify right side
125,247.21x = 12,363,264,453.65 - Step 5: Solve for x
x = 12,363,264,453.65/125,247.21 - Step 6: Final answer
x = 98,710.90
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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.