Finding the Fourth Proportional to 102,541.26, 141,507.09 and 57,218.07
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Solution
The fourth proportional to 102,541.26, 141,507.09 and 57,218.07 is: 78,961.02
Step by Step Solution
- Step 1: Write the proportion equation
102,541.26 : 141,507.09 = 57,218.07 : x - Step 2: Convert to fraction form
102,541.26/141,507.09 = 57,218.07/x - Step 3: Cross multiply
102,541.26x = 141,507.09 × 57,218.07 - Step 4: Simplify right side
102,541.26x = 8,096,762,581.12 - Step 5: Solve for x
x = 8,096,762,581.12/102,541.26 - Step 6: Final answer
x = 78,961.02
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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.