Finding the Fourth Proportional to 190,405.36, 262,755.36 and 105,521.68
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Solution
The fourth proportional to 190,405.36, 262,755.36 and 105,521.68 is: 145,617.68
Step by Step Solution
- Step 1: Write the proportion equation
190,405.36 : 262,755.36 = 105,521.68 : x - Step 2: Convert to fraction form
190,405.36/262,755.36 = 105,521.68/x - Step 3: Cross multiply
190,405.36x = 262,755.36 × 105,521.68 - Step 4: Simplify right side
190,405.36x = 27,726,387,016.20 - Step 5: Solve for x
x = 27,726,387,016.20/190,405.36 - Step 6: Final answer
x = 145,617.68
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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.