Finding the Fourth Proportional to 131,178.08, 181,027.84 and 71,562.08
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Solution
The fourth proportional to 131,178.08, 181,027.84 and 71,562.08 is: 98,756.81
Step by Step Solution
- Step 1: Write the proportion equation
131,178.08 : 181,027.84 = 71,562.08 : x - Step 2: Convert to fraction form
131,178.08/181,027.84 = 71,562.08/x - Step 3: Cross multiply
131,178.08x = 181,027.84 × 71,562.08 - Step 4: Simplify right side
131,178.08x = 12,954,728,768.31 - Step 5: Solve for x
x = 12,954,728,768.31/131,178.08 - Step 6: Final answer
x = 98,756.81
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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.