Finding the Fourth Proportional to 121,319.88, 181,856.70 and 46,420.80
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Solution
The fourth proportional to 121,319.88, 181,856.70 and 46,420.80 is: 69,584.09
Step by Step Solution
- Step 1: Write the proportion equation
121,319.88 : 181,856.70 = 46,420.80 : x - Step 2: Convert to fraction form
121,319.88/181,856.70 = 46,420.80/x - Step 3: Cross multiply
121,319.88x = 181,856.70 × 46,420.80 - Step 4: Simplify right side
121,319.88x = 8,441,933,499.36 - Step 5: Solve for x
x = 8,441,933,499.36/121,319.88 - Step 6: Final answer
x = 69,584.09
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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.