Finding the Fourth Proportional to 153,936.26, 212,435.65 and 85,950.94
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Solution
The fourth proportional to 153,936.26, 212,435.65 and 85,950.94 is: 118,614.31
Step by Step Solution
- Step 1: Write the proportion equation
153,936.26 : 212,435.65 = 85,950.94 : x - Step 2: Convert to fraction form
153,936.26/212,435.65 = 85,950.94/x - Step 3: Cross multiply
153,936.26x = 212,435.65 × 85,950.94 - Step 4: Simplify right side
153,936.26x = 18,259,043,061.04 - Step 5: Solve for x
x = 18,259,043,061.04/153,936.26 - Step 6: Final answer
x = 118,614.31
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1.5x scale
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.