Finding the Fourth Proportional to 119,881.58, 165,424.80 and 66,163.13
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Solution
The fourth proportional to 119,881.58, 165,424.80 and 66,163.13 is: 91,298.62
Step by Step Solution
- Step 1: Write the proportion equation
119,881.58 : 165,424.80 = 66,163.13 : x - Step 2: Convert to fraction form
119,881.58/165,424.80 = 66,163.13/x - Step 3: Cross multiply
119,881.58x = 165,424.80 × 66,163.13 - Step 4: Simplify right side
119,881.58x = 10,945,022,713.03 - Step 5: Solve for x
x = 10,945,022,713.03/119,881.58 - Step 6: Final answer
x = 91,298.62
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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.