Finding the Fourth Proportional to 187,798.26, 259,163.64 and 102,913.50
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Solution
The fourth proportional to 187,798.26, 259,163.64 and 102,913.50 is: 142,021.75
Step by Step Solution
- Step 1: Write the proportion equation
187,798.26 : 259,163.64 = 102,913.50 : x - Step 2: Convert to fraction form
187,798.26/259,163.64 = 102,913.50/x - Step 3: Cross multiply
187,798.26x = 259,163.64 × 102,913.50 - Step 4: Simplify right side
187,798.26x = 26,671,437,265.14 - Step 5: Solve for x
x = 26,671,437,265.14/187,798.26 - Step 6: Final answer
x = 142,021.75
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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.