Finding the Fourth Proportional to 123,341.81, 170,212.11 and 66,753.19
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Solution
The fourth proportional to 123,341.81, 170,212.11 and 66,753.19 is: 92,119.63
Step by Step Solution
- Step 1: Write the proportion equation
123,341.81 : 170,212.11 = 66,753.19 : x - Step 2: Convert to fraction form
123,341.81/170,212.11 = 66,753.19/x - Step 3: Cross multiply
123,341.81x = 170,212.11 × 66,753.19 - Step 4: Simplify right side
123,341.81x = 11,362,201,319.13 - Step 5: Solve for x
x = 11,362,201,319.13/123,341.81 - Step 6: Final answer
x = 92,119.63
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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.