Finding the Fourth Proportional to 127,306.68, 190,958.80 and 77,400.56
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Solution
The fourth proportional to 127,306.68, 190,958.80 and 77,400.56 is: 116,100.09
Step by Step Solution
- Step 1: Write the proportion equation
127,306.68 : 190,958.80 = 77,400.56 : x - Step 2: Convert to fraction form
127,306.68/190,958.80 = 77,400.56/x - Step 3: Cross multiply
127,306.68x = 190,958.80 × 77,400.56 - Step 4: Simplify right side
127,306.68x = 14,780,316,908.63 - Step 5: Solve for x
x = 14,780,316,908.63/127,306.68 - Step 6: Final answer
x = 116,100.09
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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.