Finding the Fourth Proportional to 122,364.71, 168,864.97 and 91,683.38
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Solution
The fourth proportional to 122,364.71, 168,864.97 and 91,683.38 is: 126,524.32
Step by Step Solution
- Step 1: Write the proportion equation
122,364.71 : 168,864.97 = 91,683.38 : x - Step 2: Convert to fraction form
122,364.71/168,864.97 = 91,683.38/x - Step 3: Cross multiply
122,364.71x = 168,864.97 × 91,683.38 - Step 4: Simplify right side
122,364.71x = 15,482,111,213.20 - Step 5: Solve for x
x = 15,482,111,213.20/122,364.71 - Step 6: Final answer
x = 126,524.32
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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.