Finding the Fourth Proportional to 189,671.54, 261,743.67 and 103,628.68
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Solution
The fourth proportional to 189,671.54, 261,743.67 and 103,628.68 is: 143,005.90
Step by Step Solution
- Step 1: Write the proportion equation
189,671.54 : 261,743.67 = 103,628.68 : x - Step 2: Convert to fraction form
189,671.54/261,743.67 = 103,628.68/x - Step 3: Cross multiply
189,671.54x = 261,743.67 × 103,628.68 - Step 4: Simplify right side
189,671.54x = 27,124,149,841.27 - Step 5: Solve for x
x = 27,124,149,841.27/189,671.54 - Step 6: Final answer
x = 143,005.90
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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.