Finding the Fourth Proportional to 149,836.08, 206,780.06 and 86,173.92
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Solution
The fourth proportional to 149,836.08, 206,780.06 and 86,173.92 is: 118,923.62
Step by Step Solution
- Step 1: Write the proportion equation
149,836.08 : 206,780.06 = 86,173.92 : x - Step 2: Convert to fraction form
149,836.08/206,780.06 = 86,173.92/x - Step 3: Cross multiply
149,836.08x = 206,780.06 × 86,173.92 - Step 4: Simplify right side
149,836.08x = 17,819,048,348.04 - Step 5: Solve for x
x = 17,819,048,348.04/149,836.08 - Step 6: Final answer
x = 118,923.62
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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.