Finding the Fourth Proportional to 120,207.18, 165,897.99 and 66,496.26
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Solution
The fourth proportional to 120,207.18, 165,897.99 and 66,496.26 is: 91,771.52
Step by Step Solution
- Step 1: Write the proportion equation
120,207.18 : 165,897.99 = 66,496.26 : x - Step 2: Convert to fraction form
120,207.18/165,897.99 = 66,496.26/x - Step 3: Cross multiply
120,207.18x = 165,897.99 × 66,496.26 - Step 4: Simplify right side
120,207.18x = 11,031,595,876.52 - Step 5: Solve for x
x = 11,031,595,876.52/120,207.18 - Step 6: Final answer
x = 91,771.52
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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.