Finding the Fourth Proportional to 132,048.20, 197,780.70 and 53,121.80
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Solution
The fourth proportional to 132,048.20, 197,780.70 and 53,121.80 is: 79,565.39
Step by Step Solution
- Step 1: Write the proportion equation
132,048.20 : 197,780.70 = 53,121.80 : x - Step 2: Convert to fraction form
132,048.20/197,780.70 = 53,121.80/x - Step 3: Cross multiply
132,048.20x = 197,780.70 × 53,121.80 - Step 4: Simplify right side
132,048.20x = 10,506,466,789.26 - Step 5: Solve for x
x = 10,506,466,789.26/132,048.20 - Step 6: Final answer
x = 79,565.39
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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.