Finding the Fourth Proportional to 121,543.70, 182,190.94 and 46,643.74
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Solution
The fourth proportional to 121,543.70, 182,190.94 and 46,643.74 is: 69,917.79
Step by Step Solution
- Step 1: Write the proportion equation
121,543.70 : 182,190.94 = 46,643.74 : x - Step 2: Convert to fraction form
121,543.70/182,190.94 = 46,643.74/x - Step 3: Cross multiply
121,543.70x = 182,190.94 × 46,643.74 - Step 4: Simplify right side
121,543.70x = 8,498,066,263.63 - Step 5: Solve for x
x = 8,498,066,263.63/121,543.70 - Step 6: Final answer
x = 69,917.79
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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.