Finding the Fourth Proportional to 133,178.97, 183,661.79 and 99,262.65
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Solution
The fourth proportional to 133,178.97, 183,661.79 and 99,262.65 is: 136,889.15
Step by Step Solution
- Step 1: Write the proportion equation
133,178.97 : 183,661.79 = 99,262.65 : x - Step 2: Convert to fraction form
133,178.97/183,661.79 = 99,262.65/x - Step 3: Cross multiply
133,178.97x = 183,661.79 × 99,262.65 - Step 4: Simplify right side
133,178.97x = 18,230,755,979.14 - Step 5: Solve for x
x = 18,230,755,979.14/133,178.97 - Step 6: Final answer
x = 136,889.15
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.