Finding the Fourth Proportional to 151,986.98, 209,735.49 and 84,000.44
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Solution
The fourth proportional to 151,986.98, 209,735.49 and 84,000.44 is: 115,916.99
Step by Step Solution
- Step 1: Write the proportion equation
151,986.98 : 209,735.49 = 84,000.44 : x - Step 2: Convert to fraction form
151,986.98/209,735.49 = 84,000.44/x - Step 3: Cross multiply
151,986.98x = 209,735.49 × 84,000.44 - Step 4: Simplify right side
151,986.98x = 17,617,873,443.62 - Step 5: Solve for x
x = 17,617,873,443.62/151,986.98 - Step 6: Final answer
x = 115,916.99
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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.