Finding the Fourth Proportional to 125,049.36, 172,592.70 and 71,329.20
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Solution
The fourth proportional to 125,049.36, 172,592.70 and 71,329.20 is: 98,448.32
Step by Step Solution
- Step 1: Write the proportion equation
125,049.36 : 172,592.70 = 71,329.20 : x - Step 2: Convert to fraction form
125,049.36/172,592.70 = 71,329.20/x - Step 3: Cross multiply
125,049.36x = 172,592.70 × 71,329.20 - Step 4: Simplify right side
125,049.36x = 12,310,899,216.84 - Step 5: Solve for x
x = 12,310,899,216.84/125,049.36 - Step 6: Final answer
x = 98,448.32
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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.