Finding the Fourth Proportional to 126,159.20, 188,979.60 and 63,864.80
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Solution
The fourth proportional to 126,159.20, 188,979.60 and 63,864.80 is: 95,665.99
Step by Step Solution
- Step 1: Write the proportion equation
126,159.20 : 188,979.60 = 63,864.80 : x - Step 2: Convert to fraction form
126,159.20/188,979.60 = 63,864.80/x - Step 3: Cross multiply
126,159.20x = 188,979.60 × 63,864.80 - Step 4: Simplify right side
126,159.20x = 12,069,144,358.08 - Step 5: Solve for x
x = 12,069,144,358.08/126,159.20 - Step 6: Final answer
x = 95,665.99
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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.