Finding the Fourth Proportional to 161,356.74, 222,438.87 and 106,817.52
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Solution
The fourth proportional to 161,356.74, 222,438.87 and 106,817.52 is: 147,253.65
Step by Step Solution
- Step 1: Write the proportion equation
161,356.74 : 222,438.87 = 106,817.52 : x - Step 2: Convert to fraction form
161,356.74/222,438.87 = 106,817.52/x - Step 3: Cross multiply
161,356.74x = 222,438.87 × 106,817.52 - Step 4: Simplify right side
161,356.74x = 23,760,368,445.00 - Step 5: Solve for x
x = 23,760,368,445.00/161,356.74 - Step 6: Final answer
x = 147,253.65
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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.