Finding the Fourth Proportional to 190,197.12, 262,486.92 and 105,322.08
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Solution
The fourth proportional to 190,197.12, 262,486.92 and 105,322.08 is: 145,352.72
Step by Step Solution
- Step 1: Write the proportion equation
190,197.12 : 262,486.92 = 105,322.08 : x - Step 2: Convert to fraction form
190,197.12/262,486.92 = 105,322.08/x - Step 3: Cross multiply
190,197.12x = 262,486.92 × 105,322.08 - Step 4: Simplify right side
190,197.12x = 27,645,668,387.19 - Step 5: Solve for x
x = 27,645,668,387.19/190,197.12 - Step 6: Final answer
x = 145,352.72
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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.