Finding the Fourth Proportional to 122,306.06, 168,782.67 and 71,353.82
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Solution
The fourth proportional to 122,306.06, 168,782.67 and 71,353.82 is: 98,468.45
Step by Step Solution
- Step 1: Write the proportion equation
122,306.06 : 168,782.67 = 71,353.82 : x - Step 2: Convert to fraction form
122,306.06/168,782.67 = 71,353.82/x - Step 3: Cross multiply
122,306.06x = 168,782.67 × 71,353.82 - Step 4: Simplify right side
122,306.06x = 12,043,288,676.26 - Step 5: Solve for x
x = 12,043,288,676.26/122,306.06 - Step 6: Final answer
x = 98,468.45
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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.