Finding the Fourth Proportional to 119,889.09, 165,435.14 and 66,170.63
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Solution
The fourth proportional to 119,889.09, 165,435.14 and 66,170.63 is: 91,308.96
Step by Step Solution
- Step 1: Write the proportion equation
119,889.09 : 165,435.14 = 66,170.63 : x - Step 2: Convert to fraction form
119,889.09/165,435.14 = 66,170.63/x - Step 3: Cross multiply
119,889.09x = 165,435.14 × 66,170.63 - Step 4: Simplify right side
119,889.09x = 10,946,948,016.95 - Step 5: Solve for x
x = 10,946,948,016.95/119,889.09 - Step 6: Final answer
x = 91,308.96
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1.5x scale
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.