Finding the Fourth Proportional to 104,892.12, 144,804.74 and 71,079.26
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Solution
The fourth proportional to 104,892.12, 144,804.74 and 71,079.26 is: 98,125.70
Step by Step Solution
- Step 1: Write the proportion equation
104,892.12 : 144,804.74 = 71,079.26 : x - Step 2: Convert to fraction form
104,892.12/144,804.74 = 71,079.26/x - Step 3: Cross multiply
104,892.12x = 144,804.74 × 71,079.26 - Step 4: Simplify right side
104,892.12x = 10,292,612,684.27 - Step 5: Solve for x
x = 10,292,612,684.27/104,892.12 - Step 6: Final answer
x = 98,125.70
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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.