Finding the Fourth Proportional to 153,876.20, 230,879.10 and 83,805.80
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Solution
The fourth proportional to 153,876.20, 230,879.10 and 83,805.80 is: 125,743.99
Step by Step Solution
- Step 1: Write the proportion equation
153,876.20 : 230,879.10 = 83,805.80 : x - Step 2: Convert to fraction form
153,876.20/230,879.10 = 83,805.80/x - Step 3: Cross multiply
153,876.20x = 230,879.10 × 83,805.80 - Step 4: Simplify right side
153,876.20x = 19,349,007,678.78 - Step 5: Solve for x
x = 19,349,007,678.78/153,876.20 - Step 6: Final answer
x = 125,743.99
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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.