Finding the Fourth Proportional to 153,081.63, 211,414.05 and 136,383.93
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Solution
The fourth proportional to 153,081.63, 211,414.05 and 136,383.93 is: 188,353.62
Step by Step Solution
- Step 1: Write the proportion equation
153,081.63 : 211,414.05 = 136,383.93 : x - Step 2: Convert to fraction form
153,081.63/211,414.05 = 136,383.93/x - Step 3: Cross multiply
153,081.63x = 211,414.05 × 136,383.93 - Step 4: Simplify right side
153,081.63x = 28,833,478,996.22 - Step 5: Solve for x
x = 28,833,478,996.22/153,081.63 - Step 6: Final answer
x = 188,353.62
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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.