Finding the Fourth Proportional to 120,271.24, 165,971.82 and 66,553.03
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Solution
The fourth proportional to 120,271.24, 165,971.82 and 66,553.03 is: 91,841.80
Step by Step Solution
- Step 1: Write the proportion equation
120,271.24 : 165,971.82 = 66,553.03 : x - Step 2: Convert to fraction form
120,271.24/165,971.82 = 66,553.03/x - Step 3: Cross multiply
120,271.24x = 165,971.82 × 66,553.03 - Step 4: Simplify right side
120,271.24x = 11,045,927,515.61 - Step 5: Solve for x
x = 11,045,927,515.61/120,271.24 - Step 6: Final answer
x = 91,841.80
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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.