Finding the Fourth Proportional to 163,209.37, 225,245.12 and 91,589.68
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Solution
The fourth proportional to 163,209.37, 225,245.12 and 91,589.68 is: 126,402.84
Step by Step Solution
- Step 1: Write the proportion equation
163,209.37 : 225,245.12 = 91,589.68 : x - Step 2: Convert to fraction form
163,209.37/225,245.12 = 91,589.68/x - Step 3: Cross multiply
163,209.37x = 225,245.12 × 91,589.68 - Step 4: Simplify right side
163,209.37x = 20,630,128,462.36 - Step 5: Solve for x
x = 20,630,128,462.36/163,209.37 - Step 6: Final answer
x = 126,402.84
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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.