Finding the Fourth Proportional to 158,232.24, 218,360.82 and 86,616.84
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Solution
The fourth proportional to 158,232.24, 218,360.82 and 86,616.84 is: 119,531.42
Step by Step Solution
- Step 1: Write the proportion equation
158,232.24 : 218,360.82 = 86,616.84 : x - Step 2: Convert to fraction form
158,232.24/218,360.82 = 86,616.84/x - Step 3: Cross multiply
158,232.24x = 218,360.82 × 86,616.84 - Step 4: Simplify right side
158,232.24x = 18,913,724,208.21 - Step 5: Solve for x
x = 18,913,724,208.21/158,232.24 - Step 6: Final answer
x = 119,531.42
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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.