Finding the Fourth Proportional to 102,629.74, 153,988.96 and 55,189.38
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Solution
The fourth proportional to 102,629.74, 153,988.96 and 55,189.38 is: 82,807.92
Step by Step Solution
- Step 1: Write the proportion equation
102,629.74 : 153,988.96 = 55,189.38 : x - Step 2: Convert to fraction form
102,629.74/153,988.96 = 55,189.38/x - Step 3: Cross multiply
102,629.74x = 153,988.96 × 55,189.38 - Step 4: Simplify right side
102,629.74x = 8,498,555,229.24 - Step 5: Solve for x
x = 8,498,555,229.24/102,629.74 - Step 6: Final answer
x = 82,807.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.