Finding the Fourth Proportional to 143,201.24, 197,617.76 and 79,544.96
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Solution
The fourth proportional to 143,201.24, 197,617.76 and 79,544.96 is: 109,772.07
Step by Step Solution
- Step 1: Write the proportion equation
143,201.24 : 197,617.76 = 79,544.96 : x - Step 2: Convert to fraction form
143,201.24/197,617.76 = 79,544.96/x - Step 3: Cross multiply
143,201.24x = 197,617.76 × 79,544.96 - Step 4: Simplify right side
143,201.24x = 15,719,496,814.49 - Step 5: Solve for x
x = 15,719,496,814.49/143,201.24 - Step 6: Final answer
x = 109,772.07
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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.