Finding the Fourth Proportional to 119,654.41, 165,120.97 and 65,207.07
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Solution
The fourth proportional to 119,654.41, 165,120.97 and 65,207.07 is: 89,984.60
Step by Step Solution
- Step 1: Write the proportion equation
119,654.41 : 165,120.97 = 65,207.07 : x - Step 2: Convert to fraction form
119,654.41/165,120.97 = 65,207.07/x - Step 3: Cross multiply
119,654.41x = 165,120.97 × 65,207.07 - Step 4: Simplify right side
119,654.41x = 10,767,054,649.26 - Step 5: Solve for x
x = 10,767,054,649.26/119,654.41 - Step 6: Final answer
x = 89,984.60
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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.