Finding the Fourth Proportional to 153,161.64, 211,372.74 and 86,097.96
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Solution
The fourth proportional to 153,161.64, 211,372.74 and 86,097.96 is: 118,820.62
Step by Step Solution
- Step 1: Write the proportion equation
153,161.64 : 211,372.74 = 86,097.96 : x - Step 2: Convert to fraction form
153,161.64/211,372.74 = 86,097.96/x - Step 3: Cross multiply
153,161.64x = 211,372.74 × 86,097.96 - Step 4: Simplify right side
153,161.64x = 18,198,761,713.61 - Step 5: Solve for x
x = 18,198,761,713.61/153,161.64 - Step 6: Final answer
x = 118,820.62
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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.