Finding the Fourth Proportional to 163,081.51, 225,054.11 and 91,459.99
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Solution
The fourth proportional to 163,081.51, 225,054.11 and 91,459.99 is: 126,215.70
Step by Step Solution
- Step 1: Write the proportion equation
163,081.51 : 225,054.11 = 91,459.99 : x - Step 2: Convert to fraction form
163,081.51/225,054.11 = 91,459.99/x - Step 3: Cross multiply
163,081.51x = 225,054.11 × 91,459.99 - Step 4: Simplify right side
163,081.51x = 20,583,446,650.06 - Step 5: Solve for x
x = 20,583,446,650.06/163,081.51 - Step 6: Final answer
x = 126,215.70
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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.