Finding the Fourth Proportional to 116,697.70, 161,036.26 and 68,955.49
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Solution
The fourth proportional to 116,697.70, 161,036.26 and 68,955.49 is: 95,154.70
Step by Step Solution
- Step 1: Write the proportion equation
116,697.70 : 161,036.26 = 68,955.49 : x - Step 2: Convert to fraction form
116,697.70/161,036.26 = 68,955.49/x - Step 3: Cross multiply
116,697.70x = 161,036.26 × 68,955.49 - Step 4: Simplify right side
116,697.70x = 11,104,334,216.07 - Step 5: Solve for x
x = 11,104,334,216.07/116,697.70 - Step 6: Final answer
x = 95,154.70
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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.