Finding the Fourth Proportional to 151,774.26, 209,439.37 and 83,789.54
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Solution
The fourth proportional to 151,774.26, 209,439.37 and 83,789.54 is: 115,624.54
Step by Step Solution
- Step 1: Write the proportion equation
151,774.26 : 209,439.37 = 83,789.54 : x - Step 2: Convert to fraction form
151,774.26/209,439.37 = 83,789.54/x - Step 3: Cross multiply
151,774.26x = 209,439.37 × 83,789.54 - Step 4: Simplify right side
151,774.26x = 17,548,828,313.13 - Step 5: Solve for x
x = 17,548,828,313.13/151,774.26 - Step 6: Final answer
x = 115,624.54
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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.