Finding the Fourth Proportional to 129,901.26, 179,260.11 and 73,317.90
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Solution
The fourth proportional to 129,901.26, 179,260.11 and 73,317.90 is: 101,176.65
Step by Step Solution
- Step 1: Write the proportion equation
129,901.26 : 179,260.11 = 73,317.90 : x - Step 2: Convert to fraction form
129,901.26/179,260.11 = 73,317.90/x - Step 3: Cross multiply
129,901.26x = 179,260.11 × 73,317.90 - Step 4: Simplify right side
129,901.26x = 13,142,974,818.97 - Step 5: Solve for x
x = 13,142,974,818.97/129,901.26 - Step 6: Final answer
x = 101,176.65
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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.