Finding the Fourth Proportional to 135,545.44, 187,059.90 and 75,122.68
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Solution
The fourth proportional to 135,545.44, 187,059.90 and 75,122.68 is: 103,673.28
Step by Step Solution
- Step 1: Write the proportion equation
135,545.44 : 187,059.90 = 75,122.68 : x - Step 2: Convert to fraction form
135,545.44/187,059.90 = 75,122.68/x - Step 3: Cross multiply
135,545.44x = 187,059.90 × 75,122.68 - Step 4: Simplify right side
135,545.44x = 14,052,441,008.53 - Step 5: Solve for x
x = 14,052,441,008.53/135,545.44 - Step 6: Final answer
x = 103,673.28
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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.