Finding the Fourth Proportional to 153,813.62, 212,237.36 and 102,744.43
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Solution
The fourth proportional to 153,813.62, 212,237.36 and 102,744.43 is: 141,770.32
Step by Step Solution
- Step 1: Write the proportion equation
153,813.62 : 212,237.36 = 102,744.43 : x - Step 2: Convert to fraction form
153,813.62/212,237.36 = 102,744.43/x - Step 3: Cross multiply
153,813.62x = 212,237.36 × 102,744.43 - Step 4: Simplify right side
153,813.62x = 21,806,206,577.90 - Step 5: Solve for x
x = 21,806,206,577.90/153,813.62 - Step 6: Final answer
x = 141,770.32
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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.