Finding the Fourth Proportional to 153,134.22, 211,342.06 and 87,729.26
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Solution
The fourth proportional to 153,134.22, 211,342.06 and 87,729.26 is: 121,076.02
Step by Step Solution
- Step 1: Write the proportion equation
153,134.22 : 211,342.06 = 87,729.26 : x - Step 2: Convert to fraction form
153,134.22/211,342.06 = 87,729.26/x - Step 3: Cross multiply
153,134.22x = 211,342.06 × 87,729.26 - Step 4: Simplify right side
153,134.22x = 18,540,882,530.68 - Step 5: Solve for x
x = 18,540,882,530.68/153,134.22 - Step 6: Final answer
x = 121,076.02
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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.