Finding the Fourth Proportional to 131,540.99, 197,385.48 and 71,573.79
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Solution
The fourth proportional to 131,540.99, 197,385.48 and 71,573.79 is: 107,400.95
Step by Step Solution
- Step 1: Write the proportion equation
131,540.99 : 197,385.48 = 71,573.79 : x - Step 2: Convert to fraction form
131,540.99/197,385.48 = 71,573.79/x - Step 3: Cross multiply
131,540.99x = 197,385.48 × 71,573.79 - Step 4: Simplify right side
131,540.99x = 14,127,626,894.57 - Step 5: Solve for x
x = 14,127,626,894.57/131,540.99 - Step 6: Final answer
x = 107,400.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.