Finding the Fourth Proportional to 188,086.12, 259,539.94 and 112,632.68
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Solution
The fourth proportional to 188,086.12, 259,539.94 and 112,632.68 is: 155,421.78
Step by Step Solution
- Step 1: Write the proportion equation
188,086.12 : 259,539.94 = 112,632.68 : x - Step 2: Convert to fraction form
188,086.12/259,539.94 = 112,632.68/x - Step 3: Cross multiply
188,086.12x = 259,539.94 × 112,632.68 - Step 4: Simplify right side
188,086.12x = 29,232,679,009.24 - Step 5: Solve for x
x = 29,232,679,009.24/188,086.12 - Step 6: Final answer
x = 155,421.78
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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.