Finding the Fourth Proportional to 155,767.68, 214,959.12 and 84,147.48
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Solution
The fourth proportional to 155,767.68, 214,959.12 and 84,147.48 is: 116,123.37
Step by Step Solution
- Step 1: Write the proportion equation
155,767.68 : 214,959.12 = 84,147.48 : x - Step 2: Convert to fraction form
155,767.68/214,959.12 = 84,147.48/x - Step 3: Cross multiply
155,767.68x = 214,959.12 × 84,147.48 - Step 4: Simplify right side
155,767.68x = 18,088,268,251.02 - Step 5: Solve for x
x = 18,088,268,251.02/155,767.68 - Step 6: Final answer
x = 116,123.37
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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.