Finding the Fourth Proportional to 117,246.13, 161,790.07 and 66,263.23
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Solution
The fourth proportional to 117,246.13, 161,790.07 and 66,263.23 is: 91,437.84
Step by Step Solution
- Step 1: Write the proportion equation
117,246.13 : 161,790.07 = 66,263.23 : x - Step 2: Convert to fraction form
117,246.13/161,790.07 = 66,263.23/x - Step 3: Cross multiply
117,246.13x = 161,790.07 × 66,263.23 - Step 4: Simplify right side
117,246.13x = 10,720,732,620.13 - Step 5: Solve for x
x = 10,720,732,620.13/117,246.13 - Step 6: Final answer
x = 91,437.84
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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.