Finding the Fourth Proportional to 125,423.24, 173,117.25 and 77,649.44
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Solution
The fourth proportional to 125,423.24, 173,117.25 and 77,649.44 is: 107,176.77
Step by Step Solution
- Step 1: Write the proportion equation
125,423.24 : 173,117.25 = 77,649.44 : x - Step 2: Convert to fraction form
125,423.24/173,117.25 = 77,649.44/x - Step 3: Cross multiply
125,423.24x = 173,117.25 × 77,649.44 - Step 4: Simplify right side
125,423.24x = 13,442,456,651.25 - Step 5: Solve for x
x = 13,442,456,651.25/125,423.24 - Step 6: Final answer
x = 107,176.77
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1.5x scale
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.