Finding the Fourth Proportional to 155,921.97, 215,172.62 and 84,301.99
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Solution
The fourth proportional to 155,921.97, 215,172.62 and 84,301.99 is: 116,336.91
Step by Step Solution
- Step 1: Write the proportion equation
155,921.97 : 215,172.62 = 84,301.99 : x - Step 2: Convert to fraction form
155,921.97/215,172.62 = 84,301.99/x - Step 3: Cross multiply
155,921.97x = 215,172.62 × 84,301.99 - Step 4: Simplify right side
155,921.97x = 18,139,479,251.65 - Step 5: Solve for x
x = 18,139,479,251.65/155,921.97 - Step 6: Final answer
x = 116,336.91
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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.