Finding the Fourth Proportional to 117,177.20, 161,701.08 and 66,192.32
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Solution
The fourth proportional to 117,177.20, 161,701.08 and 66,192.32 is: 91,343.45
Step by Step Solution
- Step 1: Write the proportion equation
117,177.20 : 161,701.08 = 66,192.32 : x - Step 2: Convert to fraction form
117,177.20/161,701.08 = 66,192.32/x - Step 3: Cross multiply
117,177.20x = 161,701.08 × 66,192.32 - Step 4: Simplify right side
117,177.20x = 10,703,369,631.71 - Step 5: Solve for x
x = 10,703,369,631.71/117,177.20 - Step 6: Final answer
x = 91,343.45
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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.