Finding the Fourth Proportional to 189,731.99, 261,807.85 and 104,843.99
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Solution
The fourth proportional to 189,731.99, 261,807.85 and 104,843.99 is: 144,672.39
Step by Step Solution
- Step 1: Write the proportion equation
189,731.99 : 261,807.85 = 104,843.99 : x - Step 2: Convert to fraction form
189,731.99/261,807.85 = 104,843.99/x - Step 3: Cross multiply
189,731.99x = 261,807.85 × 104,843.99 - Step 4: Simplify right side
189,731.99x = 27,448,979,607.32 - Step 5: Solve for x
x = 27,448,979,607.32/189,731.99 - Step 6: Final answer
x = 144,672.39
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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.