Finding the Fourth Proportional to 126,579.36, 189,934.08 and 56,504.64
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Solution
The fourth proportional to 126,579.36, 189,934.08 and 56,504.64 is: 84,785.99
Step by Step Solution
- Step 1: Write the proportion equation
126,579.36 : 189,934.08 = 56,504.64 : x - Step 2: Convert to fraction form
126,579.36/189,934.08 = 56,504.64/x - Step 3: Cross multiply
126,579.36x = 189,934.08 × 56,504.64 - Step 4: Simplify right side
126,579.36x = 10,732,156,814.13 - Step 5: Solve for x
x = 10,732,156,814.13/126,579.36 - Step 6: Final answer
x = 84,785.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.