Finding the Fourth Proportional to 104,755.80, 144,197.88 and 91,303.68
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Solution
The fourth proportional to 104,755.80, 144,197.88 and 91,303.68 is: 125,680.84
Step by Step Solution
- Step 1: Write the proportion equation
104,755.80 : 144,197.88 = 91,303.68 : x - Step 2: Convert to fraction form
104,755.80/144,197.88 = 91,303.68/x - Step 3: Cross multiply
104,755.80x = 144,197.88 × 91,303.68 - Step 4: Simplify right side
104,755.80x = 13,165,797,092.20 - Step 5: Solve for x
x = 13,165,797,092.20/104,755.80 - Step 6: Final answer
x = 125,680.84
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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.