Finding the Fourth Proportional to 119,918.58, 165,486.62 and 66,202.44
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Solution
The fourth proportional to 119,918.58, 165,486.62 and 66,202.44 is: 91,358.80
Step by Step Solution
- Step 1: Write the proportion equation
119,918.58 : 165,486.62 = 66,202.44 : x - Step 2: Convert to fraction form
119,918.58/165,486.62 = 66,202.44/x - Step 3: Cross multiply
119,918.58x = 165,486.62 × 66,202.44 - Step 4: Simplify right side
119,918.58x = 10,955,618,031.35 - Step 5: Solve for x
x = 10,955,618,031.35/119,918.58 - Step 6: Final answer
x = 91,358.80
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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.