Finding the Fourth Proportional to 119,917.10, 165,485.63 and 66,202.16
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Solution
The fourth proportional to 119,917.10, 165,485.63 and 66,202.16 is: 91,358.99
Step by Step Solution
- Step 1: Write the proportion equation
119,917.10 : 165,485.63 = 66,202.16 : x - Step 2: Convert to fraction form
119,917.10/165,485.63 = 66,202.16/x - Step 3: Cross multiply
119,917.10x = 165,485.63 × 66,202.16 - Step 4: Simplify right side
119,917.10x = 10,955,505,493.04 - Step 5: Solve for x
x = 10,955,505,493.04/119,917.10 - Step 6: Final answer
x = 91,358.99
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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.