Finding the Fourth Proportional to 117,590.62, 162,276.81 and 66,602.09
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Solution
The fourth proportional to 117,590.62, 162,276.81 and 66,602.09 is: 91,911.88
Step by Step Solution
- Step 1: Write the proportion equation
117,590.62 : 162,276.81 = 66,602.09 : x - Step 2: Convert to fraction form
117,590.62/162,276.81 = 66,602.09/x - Step 3: Cross multiply
117,590.62x = 162,276.81 × 66,602.09 - Step 4: Simplify right side
117,590.62x = 10,807,974,704.53 - Step 5: Solve for x
x = 10,807,974,704.53/117,590.62 - Step 6: Final answer
x = 91,911.88
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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.