Finding the Fourth Proportional to 121,317.88, 181,853.70 and 46,418.80
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Solution
The fourth proportional to 121,317.88, 181,853.70 and 46,418.80 is: 69,581.09
Step by Step Solution
- Step 1: Write the proportion equation
121,317.88 : 181,853.70 = 46,418.80 : x - Step 2: Convert to fraction form
121,317.88/181,853.70 = 46,418.80/x - Step 3: Cross multiply
121,317.88x = 181,853.70 × 46,418.80 - Step 4: Simplify right side
121,317.88x = 8,441,430,529.56 - Step 5: Solve for x
x = 8,441,430,529.56/121,317.88 - Step 6: Final answer
x = 69,581.09
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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.