Finding the Fourth Proportional to 119,975.09, 165,566.76 and 68,289.66
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Solution
The fourth proportional to 119,975.09, 165,566.76 and 68,289.66 is: 94,240.38
Step by Step Solution
- Step 1: Write the proportion equation
119,975.09 : 165,566.76 = 68,289.66 : x - Step 2: Convert to fraction form
119,975.09/165,566.76 = 68,289.66/x - Step 3: Cross multiply
119,975.09x = 165,566.76 × 68,289.66 - Step 4: Simplify right side
119,975.09x = 11,306,497,406.25 - Step 5: Solve for x
x = 11,306,497,406.25/119,975.09 - Step 6: Final answer
x = 94,240.38
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1.5x scale
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.