Finding the Fourth Proportional to 151,742.99, 209,405.34 and 83,759.99
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Solution
The fourth proportional to 151,742.99, 209,405.34 and 83,759.99 is: 115,588.79
Step by Step Solution
- Step 1: Write the proportion equation
151,742.99 : 209,405.34 = 83,759.99 : x - Step 2: Convert to fraction form
151,742.99/209,405.34 = 83,759.99/x - Step 3: Cross multiply
151,742.99x = 209,405.34 × 83,759.99 - Step 4: Simplify right side
151,742.99x = 17,539,788,137.32 - Step 5: Solve for x
x = 17,539,788,137.32/151,742.99 - Step 6: Final answer
x = 115,588.79
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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.