Finding the Fourth Proportional to 124,163.36, 171,351.05 and 73,178.23
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Solution
The fourth proportional to 124,163.36, 171,351.05 and 73,178.23 is: 100,989.27
Step by Step Solution
- Step 1: Write the proportion equation
124,163.36 : 171,351.05 = 73,178.23 : x - Step 2: Convert to fraction form
124,163.36/171,351.05 = 73,178.23/x - Step 3: Cross multiply
124,163.36x = 171,351.05 × 73,178.23 - Step 4: Simplify right side
124,163.36x = 12,539,166,027.79 - Step 5: Solve for x
x = 12,539,166,027.79/124,163.36 - Step 6: Final answer
x = 100,989.27
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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.