Finding the Fourth Proportional to 163,218.24, 225,245.21 and 91,603.71
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Solution
The fourth proportional to 163,218.24, 225,245.21 and 91,603.71 is: 126,415.38
Step by Step Solution
- Step 1: Write the proportion equation
163,218.24 : 225,245.21 = 91,603.71 : x - Step 2: Convert to fraction form
163,218.24/225,245.21 = 91,603.71/x - Step 3: Cross multiply
163,218.24x = 225,245.21 × 91,603.71 - Step 4: Simplify right side
163,218.24x = 20,633,296,437.71 - Step 5: Solve for x
x = 20,633,296,437.71/163,218.24 - Step 6: Final answer
x = 126,415.38
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1.5x scale
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.