Finding the Fourth Proportional to 163,931.43, 226,219.29 and 91,332.62
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Solution
The fourth proportional to 163,931.43, 226,219.29 and 91,332.62 is: 126,035.63
Step by Step Solution
- Step 1: Write the proportion equation
163,931.43 : 226,219.29 = 91,332.62 : x - Step 2: Convert to fraction form
163,931.43/226,219.29 = 91,332.62/x - Step 3: Cross multiply
163,931.43x = 226,219.29 × 91,332.62 - Step 4: Simplify right side
163,931.43x = 20,661,200,450.24 - Step 5: Solve for x
x = 20,661,200,450.24/163,931.43 - Step 6: Final answer
x = 126,035.63
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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.