Finding the Fourth Proportional to 155,146.05, 214,101.77 and 87,163.02
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Solution
The fourth proportional to 155,146.05, 214,101.77 and 87,163.02 is: 120,285.09
Step by Step Solution
- Step 1: Write the proportion equation
155,146.05 : 214,101.77 = 87,163.02 : x - Step 2: Convert to fraction form
155,146.05/214,101.77 = 87,163.02/x - Step 3: Cross multiply
155,146.05x = 214,101.77 × 87,163.02 - Step 4: Simplify right side
155,146.05x = 18,661,756,424.73 - Step 5: Solve for x
x = 18,661,756,424.73/155,146.05 - Step 6: Final answer
x = 120,285.09
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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.