Finding the Fourth Proportional to 153,194.75, 211,322.48 and 91,925.09
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Solution
The fourth proportional to 153,194.75, 211,322.48 and 91,925.09 is: 126,804.85
Step by Step Solution
- Step 1: Write the proportion equation
153,194.75 : 211,322.48 = 91,925.09 : x - Step 2: Convert to fraction form
153,194.75/211,322.48 = 91,925.09/x - Step 3: Cross multiply
153,194.75x = 211,322.48 × 91,925.09 - Step 4: Simplify right side
153,194.75x = 19,425,837,993.02 - Step 5: Solve for x
x = 19,425,837,993.02/153,194.75 - Step 6: Final answer
x = 126,804.85
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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.