Finding the Fourth Proportional to 134,408.76, 201,545.09 and 75,228.54
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Solution
The fourth proportional to 134,408.76, 201,545.09 and 75,228.54 is: 112,804.72
Step by Step Solution
- Step 1: Write the proportion equation
134,408.76 : 201,545.09 = 75,228.54 : x - Step 2: Convert to fraction form
134,408.76/201,545.09 = 75,228.54/x - Step 3: Cross multiply
134,408.76x = 201,545.09 × 75,228.54 - Step 4: Simplify right side
134,408.76x = 15,161,942,864.87 - Step 5: Solve for x
x = 15,161,942,864.87/134,408.76 - Step 6: Final answer
x = 112,804.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.