Finding the Fourth Proportional to 192,785.76, 266,031.84 and 107,902.08
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Solution
The fourth proportional to 192,785.76, 266,031.84 and 107,902.08 is: 148,897.87
Step by Step Solution
- Step 1: Write the proportion equation
192,785.76 : 266,031.84 = 107,902.08 : x - Step 2: Convert to fraction form
192,785.76/266,031.84 = 107,902.08/x - Step 3: Cross multiply
192,785.76x = 266,031.84 × 107,902.08 - Step 4: Simplify right side
192,785.76x = 28,705,388,882.23 - Step 5: Solve for x
x = 28,705,388,882.23/192,785.76 - Step 6: Final answer
x = 148,897.87
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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.