Finding the Fourth Proportional to 121,619.06, 167,832.57 and 67,904.92
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Solution
The fourth proportional to 121,619.06, 167,832.57 and 67,904.92 is: 93,707.82
Step by Step Solution
- Step 1: Write the proportion equation
121,619.06 : 167,832.57 = 67,904.92 : x - Step 2: Convert to fraction form
121,619.06/167,832.57 = 67,904.92/x - Step 3: Cross multiply
121,619.06x = 167,832.57 × 67,904.92 - Step 4: Simplify right side
121,619.06x = 11,396,657,239.24 - Step 5: Solve for x
x = 11,396,657,239.24/121,619.06 - Step 6: Final answer
x = 93,707.82
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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.