Finding the Fourth Proportional to 133,138.80, 183,715.02 and 75,785.54
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Solution
The fourth proportional to 133,138.80, 183,715.02 and 75,785.54 is: 104,574.63
Step by Step Solution
- Step 1: Write the proportion equation
133,138.80 : 183,715.02 = 75,785.54 : x - Step 2: Convert to fraction form
133,138.80/183,715.02 = 75,785.54/x - Step 3: Cross multiply
133,138.80x = 183,715.02 × 75,785.54 - Step 4: Simplify right side
133,138.80x = 13,922,941,078.24 - Step 5: Solve for x
x = 13,922,941,078.24/133,138.80 - Step 6: Final answer
x = 104,574.63
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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.