Finding the Fourth Proportional to 145,235.82, 217,875.87 and 74,119.68
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Solution
The fourth proportional to 145,235.82, 217,875.87 and 74,119.68 is: 111,190.82
Step by Step Solution
- Step 1: Write the proportion equation
145,235.82 : 217,875.87 = 74,119.68 : x - Step 2: Convert to fraction form
145,235.82/217,875.87 = 74,119.68/x - Step 3: Cross multiply
145,235.82x = 217,875.87 × 74,119.68 - Step 4: Simplify right side
145,235.82x = 16,148,889,764.12 - Step 5: Solve for x
x = 16,148,889,764.12/145,235.82 - Step 6: Final answer
x = 111,190.82
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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.