Finding the Fourth Proportional to 157,852.27, 217,839.34 and 86,236.92
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Solution
The fourth proportional to 157,852.27, 217,839.34 and 86,236.92 is: 119,008.70
Step by Step Solution
- Step 1: Write the proportion equation
157,852.27 : 217,839.34 = 86,236.92 : x - Step 2: Convert to fraction form
157,852.27/217,839.34 = 86,236.92/x - Step 3: Cross multiply
157,852.27x = 217,839.34 × 86,236.92 - Step 4: Simplify right side
157,852.27x = 18,785,793,844.23 - Step 5: Solve for x
x = 18,785,793,844.23/157,852.27 - Step 6: Final answer
x = 119,008.70
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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.