Finding the Fourth Proportional to 117,164.75, 161,687.87 and 66,178.09
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Solution
The fourth proportional to 117,164.75, 161,687.87 and 66,178.09 is: 91,326.05
Step by Step Solution
- Step 1: Write the proportion equation
117,164.75 : 161,687.87 = 66,178.09 : x - Step 2: Convert to fraction form
117,164.75/161,687.87 = 66,178.09/x - Step 3: Cross multiply
117,164.75x = 161,687.87 × 66,178.09 - Step 4: Simplify right side
117,164.75x = 10,700,194,263.53 - Step 5: Solve for x
x = 10,700,194,263.53/117,164.75 - Step 6: Final answer
x = 91,326.05
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.