Finding the Fourth Proportional to 145,745.19, 218,123.99 and 89,620.84
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Solution
The fourth proportional to 145,745.19, 218,123.99 and 89,620.84 is: 134,127.62
Step by Step Solution
- Step 1: Write the proportion equation
145,745.19 : 218,123.99 = 89,620.84 : x - Step 2: Convert to fraction form
145,745.19/218,123.99 = 89,620.84/x - Step 3: Cross multiply
145,745.19x = 218,123.99 × 89,620.84 - Step 4: Simplify right side
145,745.19x = 19,548,455,207.95 - Step 5: Solve for x
x = 19,548,455,207.95/145,745.19 - Step 6: Final answer
x = 134,127.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.