Finding the Fourth Proportional to 119,816.70, 165,347.60 and 66,101.70
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Solution
The fourth proportional to 119,816.70, 165,347.60 and 66,101.70 is: 91,220.65
Step by Step Solution
- Step 1: Write the proportion equation
119,816.70 : 165,347.60 = 66,101.70 : x - Step 2: Convert to fraction form
119,816.70/165,347.60 = 66,101.70/x - Step 3: Cross multiply
119,816.70x = 165,347.60 × 66,101.70 - Step 4: Simplify right side
119,816.70x = 10,929,757,120.41 - Step 5: Solve for x
x = 10,929,757,120.41/119,816.70 - Step 6: Final answer
x = 91,220.65
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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.