Finding the Fourth Proportional to 145,639.44, 218,544.12 and 61,394.49
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Solution
The fourth proportional to 145,639.44, 218,544.12 and 61,394.49 is: 92,127.55
Step by Step Solution
- Step 1: Write the proportion equation
145,639.44 : 218,544.12 = 61,394.49 : x - Step 2: Convert to fraction form
145,639.44/218,544.12 = 61,394.49/x - Step 3: Cross multiply
145,639.44x = 218,544.12 × 61,394.49 - Step 4: Simplify right side
145,639.44x = 13,417,404,789.90 - Step 5: Solve for x
x = 13,417,404,789.90/145,639.44 - Step 6: Final answer
x = 92,127.55
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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.