Finding the Fourth Proportional to 125,668.05, 173,419.95 and 69,078.21
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Solution
The fourth proportional to 125,668.05, 173,419.95 and 69,078.21 is: 95,326.85
Step by Step Solution
- Step 1: Write the proportion equation
125,668.05 : 173,419.95 = 69,078.21 : x - Step 2: Convert to fraction form
125,668.05/173,419.95 = 69,078.21/x - Step 3: Cross multiply
125,668.05x = 173,419.95 × 69,078.21 - Step 4: Simplify right side
125,668.05x = 11,979,539,724.29 - Step 5: Solve for x
x = 11,979,539,724.29/125,668.05 - Step 6: Final answer
x = 95,326.85
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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.