Finding the Fourth Proportional to 135,787.83, 187,542.73 and 89,427.94
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Solution
The fourth proportional to 135,787.83, 187,542.73 and 89,427.94 is: 123,512.99
Step by Step Solution
- Step 1: Write the proportion equation
135,787.83 : 187,542.73 = 89,427.94 : x - Step 2: Convert to fraction form
135,787.83/187,542.73 = 89,427.94/x - Step 3: Cross multiply
135,787.83x = 187,542.73 × 89,427.94 - Step 4: Simplify right side
135,787.83x = 16,771,560,352.09 - Step 5: Solve for x
x = 16,771,560,352.09/135,787.83 - Step 6: Final answer
x = 123,512.99
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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.