Finding the Fourth Proportional to 189,663.97, 261,754.37 and 103,636.02
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Solution
The fourth proportional to 189,663.97, 261,754.37 and 103,636.02 is: 143,027.59
Step by Step Solution
- Step 1: Write the proportion equation
189,663.97 : 261,754.37 = 103,636.02 : x - Step 2: Convert to fraction form
189,663.97/261,754.37 = 103,636.02/x - Step 3: Cross multiply
189,663.97x = 261,754.37 × 103,636.02 - Step 4: Simplify right side
189,663.97x = 27,127,181,124.41 - Step 5: Solve for x
x = 27,127,181,124.41/189,663.97 - Step 6: Final answer
x = 143,027.59
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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.