Finding the Fourth Proportional to 151,659.88, 209,291.06 and 84,596.20
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Solution
The fourth proportional to 151,659.88, 209,291.06 and 84,596.20 is: 116,742.99
Step by Step Solution
- Step 1: Write the proportion equation
151,659.88 : 209,291.06 = 84,596.20 : x - Step 2: Convert to fraction form
151,659.88/209,291.06 = 84,596.20/x - Step 3: Cross multiply
151,659.88x = 209,291.06 × 84,596.20 - Step 4: Simplify right side
151,659.88x = 17,705,228,369.97 - Step 5: Solve for x
x = 17,705,228,369.97/151,659.88 - Step 6: Final answer
x = 116,742.99
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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.