Finding the Fourth Proportional to 125,615.05, 173,346.79 and 69,025.21
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Solution
The fourth proportional to 125,615.05, 173,346.79 and 69,025.21 is: 95,253.70
Step by Step Solution
- Step 1: Write the proportion equation
125,615.05 : 173,346.79 = 69,025.21 : x - Step 2: Convert to fraction form
125,615.05/173,346.79 = 69,025.21/x - Step 3: Cross multiply
125,615.05x = 173,346.79 × 69,025.21 - Step 4: Simplify right side
125,615.05x = 11,965,298,582.58 - Step 5: Solve for x
x = 11,965,298,582.58/125,615.05 - Step 6: Final answer
x = 95,253.70
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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.