Finding the Fourth Proportional to 153,193.75, 211,321.10 and 91,924.09
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Solution
The fourth proportional to 153,193.75, 211,321.10 and 91,924.09 is: 126,803.47
Step by Step Solution
- Step 1: Write the proportion equation
153,193.75 : 211,321.10 = 91,924.09 : x - Step 2: Convert to fraction form
153,193.75/211,321.10 = 91,924.09/x - Step 3: Cross multiply
153,193.75x = 211,321.10 × 91,924.09 - Step 4: Simplify right side
153,193.75x = 19,425,499,516.81 - Step 5: Solve for x
x = 19,425,499,516.81/153,193.75 - Step 6: Final answer
x = 126,803.47
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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.