Finding the Fourth Proportional to 190,599.13, 263,020.12 and 105,724.09
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Solution
The fourth proportional to 190,599.13, 263,020.12 and 105,724.09 is: 145,895.54
Step by Step Solution
- Step 1: Write the proportion equation
190,599.13 : 263,020.12 = 105,724.09 : x - Step 2: Convert to fraction form
190,599.13/263,020.12 = 105,724.09/x - Step 3: Cross multiply
190,599.13x = 263,020.12 × 105,724.09 - Step 4: Simplify right side
190,599.13x = 27,807,562,838.69 - Step 5: Solve for x
x = 27,807,562,838.69/190,599.13 - Step 6: Final answer
x = 145,895.54
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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.