Finding the Fourth Proportional to 120,653.92, 166,719.12 and 93,866.08
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Solution
The fourth proportional to 120,653.92, 166,719.12 and 93,866.08 is: 129,703.79
Step by Step Solution
- Step 1: Write the proportion equation
120,653.92 : 166,719.12 = 93,866.08 : x - Step 2: Convert to fraction form
120,653.92/166,719.12 = 93,866.08/x - Step 3: Cross multiply
120,653.92x = 166,719.12 × 93,866.08 - Step 4: Simplify right side
120,653.92x = 15,649,270,255.45 - Step 5: Solve for x
x = 15,649,270,255.45/120,653.92 - Step 6: Final answer
x = 129,703.79
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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.