Finding the Fourth Proportional to 154,668.93, 213,460.83 and 86,704.26
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Solution
The fourth proportional to 154,668.93, 213,460.83 and 86,704.26 is: 119,661.80
Step by Step Solution
- Step 1: Write the proportion equation
154,668.93 : 213,460.83 = 86,704.26 : x - Step 2: Convert to fraction form
154,668.93/213,460.83 = 86,704.26/x - Step 3: Cross multiply
154,668.93x = 213,460.83 × 86,704.26 - Step 4: Simplify right side
154,668.93x = 18,507,963,304.14 - Step 5: Solve for x
x = 18,507,963,304.14/154,668.93 - Step 6: Final answer
x = 119,661.80
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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.