Finding the Fourth Proportional to 176,130.36, 263,979.02 and 81,228.80
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Solution
The fourth proportional to 176,130.36, 263,979.02 and 81,228.80 is: 121,743.34
Step by Step Solution
- Step 1: Write the proportion equation
176,130.36 : 263,979.02 = 81,228.80 : x - Step 2: Convert to fraction form
176,130.36/263,979.02 = 81,228.80/x - Step 3: Cross multiply
176,130.36x = 263,979.02 × 81,228.80 - Step 4: Simplify right side
176,130.36x = 21,442,699,019.78 - Step 5: Solve for x
x = 21,442,699,019.78/176,130.36 - Step 6: Final answer
x = 121,743.34
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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.