Finding the Fourth Proportional to 152,138.53, 209,935.01 and 84,144.70
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Solution
The fourth proportional to 152,138.53, 209,935.01 and 84,144.70 is: 116,110.75
Step by Step Solution
- Step 1: Write the proportion equation
152,138.53 : 209,935.01 = 84,144.70 : x - Step 2: Convert to fraction form
152,138.53/209,935.01 = 84,144.70/x - Step 3: Cross multiply
152,138.53x = 209,935.01 × 84,144.70 - Step 4: Simplify right side
152,138.53x = 17,664,918,435.95 - Step 5: Solve for x
x = 17,664,918,435.95/152,138.53 - Step 6: Final answer
x = 116,110.75
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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.