Finding the Fourth Proportional to 171,831.70, 257,812.35 and 83,163.70
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Solution
The fourth proportional to 171,831.70, 257,812.35 and 83,163.70 is: 124,776.91
Step by Step Solution
- Step 1: Write the proportion equation
171,831.70 : 257,812.35 = 83,163.70 : x - Step 2: Convert to fraction form
171,831.70/257,812.35 = 83,163.70/x - Step 3: Cross multiply
171,831.70x = 257,812.35 × 83,163.70 - Step 4: Simplify right side
171,831.70x = 21,440,628,931.70 - Step 5: Solve for x
x = 21,440,628,931.70/171,831.70 - Step 6: Final answer
x = 124,776.91
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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.