Finding the Fourth Proportional to 129,795.69, 179,117.96 and 73,207.07
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Solution
The fourth proportional to 129,795.69, 179,117.96 and 73,207.07 is: 101,025.70
Step by Step Solution
- Step 1: Write the proportion equation
129,795.69 : 179,117.96 = 73,207.07 : x - Step 2: Convert to fraction form
129,795.69/179,117.96 = 73,207.07/x - Step 3: Cross multiply
129,795.69x = 179,117.96 × 73,207.07 - Step 4: Simplify right side
129,795.69x = 13,112,701,035.98 - Step 5: Solve for x
x = 13,112,701,035.98/129,795.69 - Step 6: Final answer
x = 101,025.70
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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.