Finding the Fourth Proportional to 135,137.37, 186,494.84 and 89,737.08
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Solution
The fourth proportional to 135,137.37, 186,494.84 and 89,737.08 is: 123,840.67
Step by Step Solution
- Step 1: Write the proportion equation
135,137.37 : 186,494.84 = 89,737.08 : x - Step 2: Convert to fraction form
135,137.37/186,494.84 = 89,737.08/x - Step 3: Cross multiply
135,137.37x = 186,494.84 × 89,737.08 - Step 4: Simplify right side
135,137.37x = 16,735,502,376.67 - Step 5: Solve for x
x = 16,735,502,376.67/135,137.37 - Step 6: Final answer
x = 123,840.67
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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.