Finding the Fourth Proportional to 125,678.39, 173,439.12 and 68,320.97
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Solution
The fourth proportional to 125,678.39, 173,439.12 and 68,320.97 is: 94,284.54
Step by Step Solution
- Step 1: Write the proportion equation
125,678.39 : 173,439.12 = 68,320.97 : x - Step 2: Convert to fraction form
125,678.39/173,439.12 = 68,320.97/x - Step 3: Cross multiply
125,678.39x = 173,439.12 × 68,320.97 - Step 4: Simplify right side
125,678.39x = 11,849,528,953.75 - Step 5: Solve for x
x = 11,849,528,953.75/125,678.39 - Step 6: Final answer
x = 94,284.54
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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.