Finding the Fourth Proportional to 121,202.40, 167,230.80 and 73,444.80
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Solution
The fourth proportional to 121,202.40, 167,230.80 and 73,444.80 is: 101,336.55
Step by Step Solution
- Step 1: Write the proportion equation
121,202.40 : 167,230.80 = 73,444.80 : x - Step 2: Convert to fraction form
121,202.40/167,230.80 = 73,444.80/x - Step 3: Cross multiply
121,202.40x = 167,230.80 × 73,444.80 - Step 4: Simplify right side
121,202.40x = 12,282,232,659.84 - Step 5: Solve for x
x = 12,282,232,659.84/121,202.40 - Step 6: Final answer
x = 101,336.55
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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.