Finding the Fourth Proportional to 157,163.34, 216,890.74 and 85,545.96
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Solution
The fourth proportional to 157,163.34, 216,890.74 and 85,545.96 is: 118,056.33
Step by Step Solution
- Step 1: Write the proportion equation
157,163.34 : 216,890.74 = 85,545.96 : x - Step 2: Convert to fraction form
157,163.34/216,890.74 = 85,545.96/x - Step 3: Cross multiply
157,163.34x = 216,890.74 × 85,545.96 - Step 4: Simplify right side
157,163.34x = 18,554,126,568.41 - Step 5: Solve for x
x = 18,554,126,568.41/157,163.34 - Step 6: Final answer
x = 118,056.33
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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.