Finding the Fourth Proportional to 197,161.74, 272,088.66 and 120,679.32
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Solution
The fourth proportional to 197,161.74, 272,088.66 and 120,679.32 is: 166,540.79
Step by Step Solution
- Step 1: Write the proportion equation
197,161.74 : 272,088.66 = 120,679.32 : x - Step 2: Convert to fraction form
197,161.74/272,088.66 = 120,679.32/x - Step 3: Cross multiply
197,161.74x = 272,088.66 × 120,679.32 - Step 4: Simplify right side
197,161.74x = 32,835,473,108.07 - Step 5: Solve for x
x = 32,835,473,108.07/197,161.74 - Step 6: Final answer
x = 166,540.79
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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.