Finding the Fourth Proportional to 125,990.28, 173,854.98 and 69,388.20
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Solution
The fourth proportional to 125,990.28, 173,854.98 and 69,388.20 is: 95,749.32
Step by Step Solution
- Step 1: Write the proportion equation
125,990.28 : 173,854.98 = 69,388.20 : x - Step 2: Convert to fraction form
125,990.28/173,854.98 = 69,388.20/x - Step 3: Cross multiply
125,990.28x = 173,854.98 × 69,388.20 - Step 4: Simplify right side
125,990.28x = 12,063,484,123.24 - Step 5: Solve for x
x = 12,063,484,123.24/125,990.28 - Step 6: Final answer
x = 95,749.32
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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.